Fail definition: to fall short of success or achievement in something expected, attempted, desired, or approved.. See examples of FAIL used in a sentence.
1. A failing grade: The student received a fail on the final paper. 2. Informal Something that does not achieve the desired result; a failure: My first attempt to make flourless cookies was a big fail.
fail (fāl), v.i. to fall short of success or achievement in something expected, attempted, desired, or approved: The experiment failed because of poor planning.
‘Fail’ means to be unsuccessful in doing something, to not achieve a desired result, or to break down in function or responsibility. It also can mean to stop working or to be insufficient.
