Obligation
Obligation noun - Something one must do because of prior agreement.
Play is an antonym for obligation.
Play
Play noun - Activity engaged in to amuse oneself.
Usage example: it's such a delight to watch the children in their play
Obligation is an antonym for play.
How words are described
Both words in one sentence
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Hoist By Her Own Petard: A recurring problem of hers is her tendency to forget that after she fires somebody after kicking them around for months, they're under no obligation to play nice anymore.
Source: Wrestling / Stephanie McMahon - In The Marriage of Figaro (both the Mozart opera and the original Beaumarchais play), Marcellina is determined to make Figaro follow through on a contractual obligation to marry her.
Source: Parental Incest -
Hamlet. Much of the problems in the play are caused by his adherence to what he believes is God's law; while he doesn't particularly like the idea of killing people, he still spends the play trying to kill Claudius because he considers it his obligation to avenge his father's death.
Source: Lawful Neutral
Cite this Source
Play and Obligation. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/obligation/play
Obligation & Play. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/obligation/play>.
Play or Obligation. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/obligation/play.
Google Ngram Viewer shows how "obligation" and "play" have occurred on timeline