Synonyms|334Antonyms|124|Broader|7Narrower|11Related|552
2
negligible(adjective, mean, slight, lower, value)
2
not at issue(expression, idiom, adverb, unimportant, inapplicable)
2
not helpful
2
off the subject(expression, idiom, adverb, unimportant, irrelevant)
2
peripheral(adjective, important, extra, unnecessary, irrelevant)
2
pleonastic(spare, extreme, useless, extra, excessive)
2
redundant(spare, extreme, useless, extra, surplus)
2
small(adjective, mean, slight, lower, inferior)
2
spare(extreme, useless, extra, excessive, surplus)
2
strange(adjective, extraneous)
2
subsidiary(adjective, casual, irregular, secondary, related)
2
supervenient(adjective, incidental)
2
supplementary(adjective, extra, secondary, subsidiary, irrelevant)
2
trifling(adjective, mean, slight, lower, value)
2
unwanted(adjective, spare, extreme, useless, extra)
1
accessory
1
accident
1
accompanying
1
addendum
1
addition
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ChicagoSmart Define. 2015. "nonessential thesaurus" https://smartdefine.org/nonessential/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, nonessential thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/nonessential/thesaurus/synonyms>.
MLASmart Define. "nonessential thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/nonessential/thesaurus/synonyms>