Find Antonyms
trifling Antonyms
Opposite of trifling
Because the opposite of trifling shifts with each meaning, the 16 antonyms and opposite words below are separated across 3 exact definitions and ranked by contrast strength.
• adjective (Context 1)
Unimportant, trivial, or of very little value or consequence.
Usage Example
"They spent the entire afternoon arguing over a significant sum of money."
Strongest
significant
important
momentous
consequential
substantial
Strong
considerable
major
weighty
• adjective (Context 2)
Lazy, shiftless, frivolous, or lacking seriousness and reliability (especially in Southern US and African American Vernacular English).
Usage Example
"She refused to waste any more of her time dealing with such a diligent, unreliable partner."
Strongest
diligent
industrious
Strong
reliable
earnest
conscientious
• noun (Context 3)
Frivolous, idle, or inconsiderate behavior; the act of treating someone or something without due seriousness or respect.
Usage Example
"The committee chair made it clear that she had no patience for idle seriousness during the budget review."
Strongest
seriousness
earnestness
Strong
diligence
Similar words to trifling
Words similar to trifling shift depending on context. Common synonyms include:
insignificant
trivial
petty
frivolous
negligible
inconsequential
unimportant
frivolity
Cite this Entry
Wordmom. (2026). Antonyms for Trifling. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/trifling