Childish
Mutual synonyms
Both words in one sentence
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All of the other attempted murders were strictly For the Evulz; when they find out, the Investigation Team even lampshade how petty and childish he is.
Source: Evil Is Petty - In the Rainbow Magic series, Jack Frost sleeps with a teddy bear, is scared of the dark, and on the whole is very petty and childish.
Source: Man Child / Literature -
The humor, of course, is that Bob and Alice are being childish and petty in the same moment that they think they're proving their maturity.
Source: Outhumbling Each Other
Cite this Source
Petty and Childish. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/childish/petty
Childish & Petty. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/childish/petty>.
Petty or Childish. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/childish/petty.
Google Ngram Viewer shows how "childish" and "petty" have occurred on timeline