Synonyms of 'fail'
- be unsuccessful, bite the dust, break down, come to grief, come unstuck, fall, fizzle out (informal), flop (informal), founder, miscarry, misfire
- disappoint, abandon, desert, forget, forsake, let down, neglect, omit
- give out, conk out (informal), cut out, die, peter out, stop working
- go bankrupt, become insolvent, close down, fold (informal), go broke (informal), go bust (informal), go into receivership, go out of business, go to the wall, go under
See without fail
Thesaurus for fail from the Collins American English Thesaurus
If you fail to do something that you were trying to do, you are unable to do it or do not succeed in doing it.