The opposite of the verb "to fail" is normally to succeed.
Where fail is used to mean give out, or become inoperative, the opposite is either to endure (not fail) or to restore (bring back from failure).
Deserve
Fail
The opposite of win is lose, or (not in a contest) to fail.
The opposite of the verb comprehend would be to fail to comprehend, to fail to understand.The opposite of comprehensible (able to be understood) is incomprehensible.
Fail, lose, pass, miss.
Many verbs do not have opposites. The opposite could only be "to not aim."The adjective aimed can have the opposites random, or haphazard.
Fail
success
The opposite of win is lose, or (not in a contest) to fail.
The opposite of the verb comprehend would be to fail to comprehend, to fail to understand.The opposite of comprehensible (able to be understood) is incomprehensible.
Fail or Give up
rallymeritreachbuild
The general opposite would be to give. Other possibilities are forfeit, fail, or lose.
To fail to tell is to withhold. The opposite position of tell is to hear or listen.
hinder, cease, decline, fail, fade
Fail, lose, pass, miss.
Do the opposite of what you are told. Break one of the major rules.
Many verbs do not have opposites. The opposite could only be "to not aim."The adjective aimed can have the opposites random, or haphazard.