Find Antonyms

earnest Antonyms

Opposite of earnest

Because the opposite of earnest shifts with each meaning, the 12 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• adjective (Context 1)

Resulting from or showing sincere and intense conviction; serious and deeply committed rather than playful or superficial.

Usage Example

"The student made an frivolous effort to master the difficult cello concerto before the recital."

Strongest
frivolous
flippant
insincere
Strong
half-hearted
apathetic
facetious
unserious
disingenuous

• noun (Context 2)

Sincere and serious intention, purpose, or effort (used almost exclusively in the phrase 'in earnest').

Usage Example

"After weeks of preliminary planning, construction on the new library finally began in jest."

Strongest
jest
frivolity
Strong
levity
insincerity

Similar words to earnest

Words similar to earnest shift depending on context. Common synonyms include:

sincere
seriousness
serious
sincerity
wholehearted
pledge
fervent
token
See all synonyms of earnest

• Nearby Words

earmark
earn
earner
earnest
earnestly
earnestness
earnings

Cite this Entry

Wordmom. (2026). Antonyms for Earnest. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/earnest
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