Synonyms|728Antonyms|73|Broader|11Narrower|32Related|1.3k
5
inflexible(adjective, real)
5
stiff(adjective, real)
2
hard
2
rigid
2
organic
1
genuine(adjective, real)
1
good
1
inelastic
1
real
0
definite
0
destructive
0
intractable
0
strong
0
unflappable(adjective, real)
0
unimpressionable
0
unyielding
0
centrifugal
0
decided
0
determined
0
easy
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APASmart Define. (2015). plastic thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/plastic/thesaurus/antonyms
ChicagoSmart Define. 2015. "plastic thesaurus" https://smartdefine.org/plastic/thesaurus/antonyms (accessed September 21, 2026).
HarvardSmart Define 2015, plastic thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/plastic/thesaurus/antonyms>.
MLASmart Define. "plastic thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/plastic/thesaurus/antonyms>