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indefatigable

adjective

showing sustained enthusiastic action with unflagging vitality

Quick reference

Word Facts

Word length
13
Starts with
I
Ends with
E
Contains
ND
Scrabble score
20
Database source
OEWN 2025 Core

How it sounds

Pronunciation

ˌɪndɪˈfætɪɡəbl

Meaning

Definitions

adjective

  1. showing sustained enthusiastic action with unflagging vitality

    “an indefatigable advocate of equal rights”

In context

Example Sentences

an indefatigable advocate of equal rights
a tireless worker
unflagging pursuit of excellence

Similar words

Synonyms

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