Fastidious and Lax
Opposite meaning words
Fastidious
Fastidious adjective - Hard to please.
Usage example: he is very fastidious about how he arranges his music collection, and woe to anyone who dares to mess around with it
Lax is an antonym for fastidious.
Nearby Words: fastidiously, fastidiousness
Lax
Lax adjective - Failing to give proper care and attention.
Fastidious is an antonym for lax.
Nearby Word: laxly
Cite this Source
Lax and Fastidious. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/fastidious/lax
Fastidious & Lax. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/fastidious/lax>.
Lax or Fastidious. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/fastidious/lax.
Google Ngram Viewer shows how "fastidious" and "lax" have occurred on timeline