English dictionaryunorthodox adjective Copy definition Share Print / Save as PDFPronunciation /ʌnˈɔːθədɒks/ /ʌnˈɔɹθədɑks/Parts of speech adjectiveDefinitionsadjectiveUnusual, unconventional, or idiosyncraticSynonyms heretical heterodox inorthodoxAntonyms orthodox