Synonyms for "indefeasible" (61 found)

Ranked by relevance and common usage.

Closest matches (13)

certainchangelessconstantfatedfatefulimmutableinalienableincommunicableincommutableinconvertibleineluctableinertinescapable

Strong matches (18)

inevasibleinevitableinexorableinflexibleinsusceptible of changeintransmutableinvariableirresistibleirretrievableirreversibleirrevocablelastingnecessarynoblenoncommunicablenoncontagiousnoninfectiousnonreturnable

Related words (30)

nonreversiblepermanentrelentlessresistlessreverselesssuresure as deathsure as fateunalterableunalterativeunalteredunavoidableunchangeableunchangedunchanginguncontrollableundeflectableundeviatingunforfeitableunimpartable

Show 10 more words

unmodifiableunpreventableunremittingunrestorableunreturnableunstoppableunsusceptibleunvariableunvaryingunyielding

Related word relations

OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.

5 relation types

Antonyms

2 entries

defeasible

derived

3 entries

indefeasibilityindefeasiblenessindefeasibly

derived from

1 entries

defeasible

related to

3 entries

annulliablevoid

similar

3 entries

inalienableunforfeitable

Translations

3 translations across 2 languages.

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Bulgarian

1 entries

• неотменим adj (Not liable to being annulled)

Greek

2 entries

• ακατάρητος adj (Not liable to being annulled)
• αναφαίρετος adj (Not liable to being annulled)

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.