We found 2 Antonyms for Fastidious

Antonym Len.
Unfastidious 12
Unfastidious 12
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What are Antonyms?

Understanding Antonyms is crucial for mastering the art of language. The word, Fastidious, for example, has 2 word(s) that mean the opposite, these types of words are known as Antonyms.

Knowing what fastidious means and knowing the antonyms enhances your ability to express contrast and build more nuanced sentences.