Essential and Unfathomable

Opposite meaning words

Essential adjective - Impossible to do without.

Show all Definitions

Unfathomable is an antonym for essential.

Unfathomable adjective - Impossible to understand.

Usage example: for some unfathomable reason the family decided to venture out into the blizzard

Show all Definitions

Essential is an antonym for unfathomable.

Cite this Source

Unfathomable and Essential. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/essential/unfathomable

Essential & Unfathomable. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/essential/unfathomable>.

Unfathomable or Essential. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/essential/unfathomable.

Google Ngram Viewer shows how "essential" and "unfathomable" have occurred on timeline