must not
Verb
Meaning
must not (third-person singular simple present must not, no present participle, no simple past or past participle)
Used to indicate that something is forbidden.
Pedestrians must not cross the road until the light goes green.
Synonyms: must refrain from, be not to
Antonyms
Show all antonymsExamples
A Christian must not be fanatical; he must have love for and be sensitive towards all people.
Once a woman has forgiven her man, she must not reheat his sins for breakfast.
One cannot and must not try to erase the past merely because it does not fit the present.
He who wants to go fishing must not be afraid of the water.
Не that goes barefoot must not plant thorns.
Children and fools must not play with edged tools.