Earnest and Featherbrained

Earnest

Earnest adjective - Not joking or playful in mood or manner.
Usage example: I'll accept only an earnest apology from you

Featherbrained is an antonym for earnest.

Nearby Words: earnestness, earnestly

Featherbrained

Featherbrained adjective - Lacking in seriousness or maturity.
Usage example: some featherbrained youngsters giggled through the graduation ceremonies

Earnest is an antonym for featherbrained.
Cite this Source
Featherbrained and Earnest. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/earnest/featherbrained
Earnest & Featherbrained. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/earnest/featherbrained>.
Featherbrained or Earnest. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/earnest/featherbrained.
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