1
strayed(confused, out, hidden, lost, missing)
1
sure as death(expression, idiom)
1
sure as fate(expression, idiom)
1
telling(certain, definite, precise, sure, decisive)
1
terminal
1
unalterative
1
unaltered
1
unambiguous(definite, precise, sure, decisive, final)
1
unanswerable(definite, precise, sure, absolute, decisive)
1
unarguable(definite, precise, sure, decisive, final)
1
unchanged
1
unconditional(definite, precise, sure, decisive, final)
1
undeflectable
1
undeniable(certain, definite, precise, sure, necessary)
1
undeviating
1
unmistakable(definite, precise, sure, decisive, final)
1
unmitigable
1
unmodifiable
1
unquestionable(certain, definite, precise, sure, decisive)
1
unrecoverable
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APASmart Define. (2015). irrevocable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/irrevocable/thesaurus/synonyms
ChicagoSmart Define. 2015. "irrevocable thesaurus" https://smartdefine.org/irrevocable/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, irrevocable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/irrevocable/thesaurus/synonyms>.
MLASmart Define. "irrevocable thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/irrevocable/thesaurus/synonyms>