Word Games Pro · Verified word lists
15 Letter Words Starting With I
Browse 15 Letter Words Starting With I. 93 verified words with definitions, Scrabble scores and links to full dictionary entries.
15 Letter Words
- ideographically 15 letters · 27 points in an idiographic manner
- ignominiousness 15 letters · 18 points unworthiness meriting public disgrace and dishonor
- illustriousness 15 letters · 15 points the property possessed by something or someone of outstanding importance or eminence
- imaginativeness 15 letters · 21 points the formation of a mental image of something that is not perceived as real and is not present…
- immeasurability 15 letters · 24 points the quality of being immeasurable.
- immunochemistry 15 letters · 29 points the field of chemistry concerned with chemical processes in immunology (such as chemical studies of antigens and antibodies)
- immunocompetent 15 letters · 25 points capable of developing an immune response following exposure to an antigen
- immunodeficient 15 letters · 25 points incapable of developing an immune response following exposure to an antigen
- immunologically 15 letters · 25 points from the point of view of immunology
- immunopathology 15 letters · 28 points the branch of immunology that deals with pathologies of the immune system
- impecuniousness 15 letters · 21 points a state of lacking money
- impenetrability 15 letters · 24 points incomprehensibility by virtue of being too dense to understand
- imperishability 15 letters · 27 points the property of being resistant to decay
- imperishingness 15 letters · 23 points the property of being resistant to decay
- impermeableness 15 letters · 23 points the property of something that cannot be pervaded by a liquid
- implausibleness 15 letters · 21 points the quality of provoking disbelief
- importunateness 15 letters · 19 points Quality of a person who is given to making importunate demands, being greedily or thoughtlessly demanding.
- impressionistic 15 letters · 21 points relating to or characteristic of Impressionism
- improvisational 15 letters · 22 points relating to or characterized by improvisation; created or performed spontaneously without preparation.
- inaccessibility 15 letters · 24 points the quality of not being accessible
- inadmissibility 15 letters · 23 points unacceptability as a consequence of not being admissible
- inapplicability 15 letters · 26 points irrelevance by virtue of being inapplicable to the matter at hand
- inappropriately 15 letters · 24 points in an inappropriate manner
- inattentiveness 15 letters · 18 points the trait of not being considerate and thoughtful of others
- incommensurable 15 letters · 23 points not having a common factor
- incommunicative 15 letters · 26 points not inclined to talk or give information or express opinions
- incommutability 15 letters · 26 points the quality of being not interchangeable
- incomparability 15 letters · 26 points The condition of not being able to be compared.
- incompatibility 15 letters · 26 points the quality of being unable to exist or work in congenial combination
- incomprehension 15 letters · 24 points an inability to understand
- incomprehensive 15 letters · 27 points not comprehensive
- incongruousness 15 letters · 18 points the quality of disagreeing; being unsuitable and inappropriate
- inconsequential 15 letters · 26 points lacking worth or importance
- inconsiderately 15 letters · 21 points without consideration; in an inconsiderate manner
- inconsideration 15 letters · 18 points the quality of failing to be considerate of others
- inconspicuously 15 letters · 24 points in a manner intended to avoid attracting attention
- incriminatingly 15 letters · 23 points in an incriminating manner
- indemnification 15 letters · 23 points an act of compensation for actual loss or damage or for trouble and annoyance
- indetermination 15 letters · 18 points the quality of being vague and poorly defined
- indigestibility 15 letters · 22 points the property of being difficult to digest
- indisputability 15 letters · 23 points the quality of being beyond question or dispute or doubt
- individualistic 15 letters · 22 points with minimally restricted freedom in commerce
- industriousness 15 letters · 16 points persevering determination to perform a task
- ineffaceability 15 letters · 28 points The quality of being difficult to delete, remove, wash away, blot out, or efface.
- ineffectiveness 15 letters · 26 points lacking the power to be effective
- ineffectualness 15 letters · 23 points lacking the power to be effective
- inefficaciously 15 letters · 28 points in an ineffective manner
- inexpensiveness 15 letters · 27 points the quality of being affordable
- injudiciousness 15 letters · 25 points the trait of being injudicious
- innumerableness 15 letters · 19 points a number beyond counting
- inopportuneness 15 letters · 19 points the quality of occurring at an inconvenient time
- inquisitiveness 15 letters · 27 points The quality of being curious and interested.
- insensitiveness 15 letters · 18 points the inability to respond to affective changes in your interpersonal environment
- insignificantly 15 letters · 24 points not to a significant degree or amount
- inspirationally 15 letters · 20 points with inspiration; in an inspiring manner
- instantaneously 15 letters · 18 points without any delay
- institutionally 15 letters · 18 points by an institution
- instrumentalism 15 letters · 19 points a system of pragmatic philosophy that considers idea to be instruments that should guide our actions and their…
- instrumentalist 15 letters · 17 points someone who plays a music as a profession
- instrumentality 15 letters · 20 points an artifact (that is instrumental in accomplishing some end) for accomplishing some end
- instrumentation 15 letters · 17 points the act of providing or using the instruments needed for some implementation
- insubordination 15 letters · 18 points an insubordinate act
- insubstantially 15 letters · 20 points not substantially; lacking substantial expression or fullness
- insurrectionary 15 letters · 20 points of or relating to or given to insurrection
- insurrectionism 15 letters · 19 points the principle of revolt against constituted authority
- insurrectionist 15 letters · 17 points a person who takes part in an armed rebellion against the constituted authority (especially in the hope of…
- intelligibility 15 letters · 21 points the quality of language that is comprehensible
- intemperateness 15 letters · 19 points excess in action and immoderate indulgence of bodily appetites, especially in passion or indulgence
- intensification 15 letters · 20 points action that makes something stronger or more extreme
- interchangeable 15 letters · 23 points capable of replacing or changing places with something else; permitting mutual substitution without loss of function or suitability
- interchangeably 15 letters · 26 points in an interchangeable manner
- intercollegiate 15 letters · 18 points used of competition between colleges or universities
- interconnection 15 letters · 19 points (computer science) the act of interconnecting (wires or computers or theories etc.)
- interdependence 15 letters · 21 points a reciprocal relation between interdependent entities (objects or individuals or groups)
- interdependency 15 letters · 24 points a reciprocal relation between interdependent entities (objects or individuals or groups)
- interestingness 15 letters · 16 points the power of attracting or holding one's attention (because it is unusual or exciting etc.)
- internalisation 15 letters · 15 points learning (of values or attitudes etc.) that is incorporated within yourself
- internalization 15 letters · 24 points learning (of values or attitudes etc.) that is incorporated within yourself
- internationally 15 letters · 18 points worldwide
- interreflection 15 letters · 20 points reciprocal reflection between two reflecting surfaces
- interrogatively 15 letters · 22 points with curiosity
- interscholastic 15 letters · 22 points used of competition or cooperation between secondary schools
- intractableness 15 letters · 19 points the trait of being hard to influence or control
- intralinguistic 15 letters · 18 points within a particular language
- intramuscularly 15 letters · 22 points in an intramuscular way
- intrasentential 15 letters · 15 points of or relating to constituents within a sentence
- intussusception 15 letters · 19 points (biology) growth in the surface area of a cell by the deposit of new particles between existing particles…
- involuntariness 15 letters · 18 points the trait of being unwilling
- invulnerability 15 letters · 23 points the property of being invulnerable; the property of being incapable of being hurt (physically or emotionally)
- irreligiousness 15 letters · 16 points the quality of not being devout
- irresistibility 15 letters · 20 points the quality of being overpowering and impossible to resist
- irreversibility 15 letters · 23 points the quality of being irreversible (once done it cannot be changed)
- isoagglutinogen 15 letters · 18 points an antigen capable of causing the production of (or reacting with) an isoagglutinin