earnest
Definitions
Resulting from or showing sincere and intense conviction.
A thing intended or regarded as a sign or promise of what is to come.
Examples
He made an earnest attempt to resolve the conflict between his colleagues.
Her earnest expression showed how much she truly cared about the project's success.
The students were in earnest discussion about the implications of the new policy.
Synonyms
Antonyms
frivolous insincere flippant apathetic indifferent playful facetious