14
irrevocable(adjective, change, severe, fixed, stability)
14
unchangeable(adjective, constant, steadfast, irrevocable)
13
immutable(adjective, fixed, even, rigid, inflexible)
11
irreparable(adjective, severe, pessimistic, unable, hopelessness)
10
permanent(adjective, irrevocable)
10
irretrievable(adjective, stability, hopelessness, irrevocable)
9
unalterable(adjective, change, complete, fixed, even)
8
changeless(adjective, irrevocable)
8
undeviating(adjective, even, rigid, inflexible, reliable)
7
constant(adjective, fixed, even, rigid, inflexible)
7
irrecoverable(adjective, severe, broken, hopelessness, unchangeable)
7
irremediable(adjective, hopeless, hopelessness, irrevocable)
7
judgemental
6
settled(adjective, irrevocable)
6
final(adjective, irrevocable)
6
fixed(adjective, even, rigid, inflexible, consistent)
6
incorrigible(adjective, complete, severe, normal, even)
6
invariable(adjective, fixed, even, rigid, inflexible)
6
irredeemable(adjective, hopelessness)
5
incurable(adjective, hopelessness)
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APASmart Define. (2015). irreversible thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/irreversible/thesaurus/synonyms
ChicagoSmart Define. 2015. "irreversible thesaurus" https://smartdefine.org/irreversible/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, irreversible thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/irreversible/thesaurus/synonyms>.
MLASmart Define. "irreversible thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/irreversible/thesaurus/synonyms>