2
irreversibly
2
lasting(adjective, severe)
2
methodical(adjective, even, rigid, inflexible, reliable)
2
remediless
2
resolute
2
reverseless
2
ruined
2
straight(adjective, even, rigid, inflexible, reliable)
2
unbroken(adjective, even, rigid, inflexible, reliable)
2
undone
2
unmodifiable(adjective, strong, fixed, normal, even)
2
unredeemable
2
unswerving
2
unvarying(adjective, fixed, even, rigid, inflexible)
1
beyond repair(expression, adjective, idiom, broken, unchangeable)
1
chronic
1
compatible(adjective, normal, even, rigid, inflexible)
1
confirmed
1
consonant(adjective, normal, even, rigid, inflexible)
1
deep-dyed
11 years ago|4.3k views|share |citing 
APASmart Define. (2015). irreversible thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/irreversible/thesaurus/synonyms
ChicagoSmart Define. 2015. "irreversible thesaurus" https://smartdefine.org/irreversible/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, irreversible thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/irreversible/thesaurus/synonyms>.
MLASmart Define. "irreversible thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/irreversible/thesaurus/synonyms>