noncancellable
adjective
abiding, durable, indelible, ineffaceable, irrepealable, irreversible, lasting, nonabolishable, nonannullable, nonerasable, nonrescindable, nonretractable, nonreversible, permanent, unchangeable, undestroyable, unquashable, unvoidable
associated concepts: noncancellable clause
Burton's Legal Thesaurus.
William C. Burton.
2006