Commitment
Commitment noun - Something one must do because of prior agreement.
Usage example: they made a commitment to pay the bill upon receipt of their order
Option is an antonym for commitment.
Option
Option noun - Something that is not necessary in itself but adds to the convenience or performance of the main piece of equipment.
Commitment is an antonym for option.
How words are described
Both words in one sentence
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By the end, he nearly found a third option of a quiet and happy life in seclusion but his commitment to being unhappy meant he couldn't accept it (then the crowds came to gawp at him and everything got worse).
Source: Literature / Brave New World
Cite this Source
Option and Commitment. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/commitment/option
Commitment & Option. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/commitment/option>.
Option or Commitment. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/commitment/option.
Google Ngram Viewer shows how "commitment" and "option" have occurred on timeline