Fickle and Pertinacious

Opposite meaning words

Fickle adjective - Likely to change frequently, suddenly, or unexpectedly.

Show all Definitions

Pertinacious is an antonym for fickle.

Nearby Word: fickleness

Pertinacious adjective - Continuing despite difficulties, opposition, or discouragement.

Usage example: a pertinacious little boy who was determined to catch and collect reptiles

Show all Definitions

Fickle is an antonym for pertinacious.

Nearby Word: pertinacity

Cite this Source

Pertinacious and Fickle. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/fickle/pertinacious

Fickle & Pertinacious. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/fickle/pertinacious>.

Pertinacious or Fickle. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/fickle/pertinacious.

Google Ngram Viewer shows how "fickle" and "pertinacious" have occurred on timeline