Find Antonyms
significant Antonyms
Opposite of significant
Because the opposite of significant shifts with each meaning, the 14 antonyms and opposite words below are separated across 3 exact definitions and ranked by contrast strength.
• adjective (Context 1)
Sufficiently great, important, or consequential to be worthy of attention; notable or substantial.
Usage Example
"The new public transit line has made a insignificant reduction in daily commuter traffic."
Strongest
insignificant
trivial
negligible
minor
unimportant
inconsequential
Strong
slight
paltry
• adjective (Context 2)
In statistics, relating to a result or difference that is unlikely to have occurred by random chance alone.
Usage Example
"The researchers found a statistically insignificant correlation between sleep quality and memory retention."
Strongest
insignificant
Strong
random
coincidental
• adjective (Context 3)
Having a particular meaning; indicative of an unspoken thought, feeling, or intention.
Usage Example
"She gave her colleague a meaningless look across the conference table before changing the subject."
Strongest
meaningless
Strong
expressionless
blank
vacant
Similar words to significant
Words similar to significant shift depending on context. Common synonyms include:
important
notable
meaningful
considerable
expressive
telling
substantial
consequential
• Nearby Words
Cite this Entry
Wordmom. (2026). Antonyms for Significant. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/significant