0
minimal
0
misadventure
0
mischance
0
must not
0
name of game(expression, idiom, unimportant, trivial)
0
name of the game(expression, idiom, insignificant, unimportant, trivial)
0
natural
0
necessitous
0
nitty gritty
0
numero uno(expression, inferior, insignificant)
0
obligation
0
obligatory
0
of note(expression, dull, short)
0
of the essence(expression, idiom, secondary)
0
prerequisite
0
pressing
0
principal
0
quandary
0
serious
0
significant
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APASmart Define. (2015). inessential thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/inessential/thesaurus/antonyms
ChicagoSmart Define. 2015. "inessential thesaurus" https://smartdefine.org/inessential/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, inessential thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/inessential/thesaurus/antonyms>.
MLASmart Define. "inessential thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/inessential/thesaurus/antonyms>