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Synonyms and Antonyms for
unfailing
1. unfailing (adj.)
unceasing
Synonyms:
constant
unflagging
Antonyms:
inconstant
constancy
2. unfailing (adj.)
always able to supply more
Synonyms:
inexhaustible
Antonyms:
exhaustible
3. unfailing (adj.)
not liable to failure
Synonyms:
infallible
foolproof
Antonyms:
fallible
false