Unmodifiable and Undecided

Opposite meaning words

Unmodifiable adjective - Incapable of being modified in form or character or strength (especially by making less extreme).

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Undecided is an antonym for unmodifiable in topics: intent, fixed, not changing.

Undecided adjective - Not yet settled or decided.

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Unmodifiable is an antonym for undecided.

Nearby Word: undecidedly

Cite this Source

Undecided and Unmodifiable. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/unmodifiable/undecided

Unmodifiable & Undecided. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/unmodifiable/undecided>.

Undecided or Unmodifiable. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/unmodifiable/undecided.

Google Ngram Viewer shows how "unmodifiable" and "undecided" have occurred on timeline