Adjective
not enforceable; not capable of being brought about by compulsion
Source: WordNetWhen morals are sufficient, law is unnecessary; when morals are insufficient, law is unenforceable. Émile Durkheim
The ultimate solution to the race problem lies in the willingness of men to obey the unenforceable. Martin Luther King Jr.
Laws are useless when men are pure, unenforceable when men are corrupt. Chinese Proverb
an unenforceable law Source: Internet
unenforceable reforms Source: Internet
Any such regulation would be "void for vagueness" and unenforceable. Source: Internet