Fastidious

//fæsˈtɪdi.əs//

Antonyms for "fastidious" (9 found)

Adjective(9 words)

careless noncritical nonfastidious sloppy unconscientious uncritical unfastidious unfussy unmeticulous

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.