13
long(adjective, wordy, expansive)
11
lengthy
10
detailed(adjective, simple, uncertain)
7
long-lived(adjective, wordy, expansive)
7
lasting
6
diffuse(adjective, short, wordy, condensed)
5
eternal(adjective, pause, endless)
4
enduring(adjective, wordy, expansive)
4
long-winded(adjective, wordy, expansive)
4
wordy(adjective, expansive)
4
flatulent(adjective, pretentious, unpretentious)
4
long-term
3
forever(adverb, everlasting, endlessly, unremittingly)
3
permanent(adjective, slow)
3
perpetual(adjective, lasting, continual)
3
strong
2
huge(adjective, wordy, expansive)
2
interminable(adjective, limited, finite)
2
unending(irregular, broken, finite)
1
secret(verb, neglect)
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APASmart Define. (2016). brief thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/brief/thesaurus/antonyms
ChicagoSmart Define. 2016. "brief thesaurus" https://smartdefine.org/brief/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2016, brief thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/brief/thesaurus/antonyms>.
MLASmart Define. "brief thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/brief/thesaurus/antonyms>