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Synonyms and Antonyms for unfailing

1. unfailing (adj.)

always able to supply more

Synonyms:

inexhaustible

Antonyms:

exhaustible

2. unfailing (adj.)

not liable to failure

Synonyms:

Antonyms:

fallible

3. unfailing (adj.)

unceasing

Synonyms:

Antonyms:

inconstant