adjective:not true; contrary to fact or reality
The statement that the Earth is flat is demonstrably false.
adjective:incorrect or mistaken
Her answer was false because she misread the question.
adjective:deliberately deceptive; dishonest
He gave a false name to the police.
adjective:not genuine; counterfeit or imitation
The officer confiscated several false passports.
adjective:artificial, used as a substitute for a natural part
She wore false eyelashes on stage.
adjective:disloyal or faithless
A false friend will abandon you in times of trouble.