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WORDNET DICTIONARY
CIDE DICTIONARY
THESAURUS

WORDNET DICTIONARY

Adjective nonreturnable has 1 sense

• nonreturnable(a = adj.all) Array - that may not be returned; "nonreturnable bottles cannot be exchanged for a deposit"; "sale merchandise is nonreturnable"
Antonym: returnable

CIDE DICTIONARY

THESAURUS

nonreturnable

changeless, constant, immutable, incommutable, inconvertible, indefeasible, inert, insusceptible of change, intransmutable, invariable, irretrievable, irreversible, irrevocable, lasting, noble, nonreversible, permanent, reverseless, unalterable, unalterative, unaltered, unchangeable, unchanged, unchanging, undeflectable, undeviating, unmodifiable, unremitting, unrestorable, unreturnable, unsusceptible, unvariable, unvarying

For further exploring for "nonreturnable" in Webster Dictionary Online