1
undying
1
unending
0
abiding
0
advanced
0
agitate
0
arouse
0
blockade
0
ceaseless
0
confirmed
0
constant
0
continuous
0
deep
0
deep-rooted
0
deep-seated
0
deep in thought
0
durable
0
entrenched
0
fixed
0
hard-core
0
immutable
10 years ago|1.6k views|share |citing 
APASmart Define. (2016). interim thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/interim/thesaurus/antonyms
ChicagoSmart Define. 2016. "interim thesaurus" https://smartdefine.org/interim/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, interim thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/interim/thesaurus/antonyms>.
MLASmart Define. "interim thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/interim/thesaurus/antonyms>