3
unexpendable
2
nondisposable
1
fundamental
1
great
1
indispensable
1
intrinsic
1
necessary
0
fateful
0
grand
0
helpful
0
imperative
0
key
0
life-and-death
0
magisterial
0
main
0
major
0
material
0
momentous
0
needful
0
obligatory
<123>
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APASmart Define. (2015). expendable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/expendable/thesaurus/antonyms
ChicagoSmart Define. 2015. "expendable thesaurus" https://smartdefine.org/expendable/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, expendable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/expendable/thesaurus/antonyms>.
MLASmart Define. "expendable thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/expendable/thesaurus/antonyms>