(noun, adjective, adverb)


1. not in accordance with the fact or reality or actuality

- gave false testimony under oath

- false tales of bravery

Similar word(s): incorrect, wrong, counterfeit, imitative, dishonest, dishonorable, insincere, mendacious, specious, spurious, untrue

2. arising from error

- a false assumption

Similar word(s): incorrect, wrong, mistaken

3. erroneous and usually accidental

- a false start

- a false alarm

Similar word(s): invalid

4. deliberately deceptive

- false pretenses

Similar word(s): insincere

5. inappropriate to reality or facts

- false hopes

Similar word(s): unrealistic, delusive

6. not genuine or real; being an imitation of the genuine article

- false teeth

Similar word(s): artificial, unreal, fake, faux, imitation, simulated

7. designed to deceive

- a suitcase with a false bottom

Similar word(s): dishonest, dishonorable

8. inaccurate in pitch

- a false (or sour) note

Similar word(s): inharmonious, unharmonious, sour

9. adopted in order to deceive

Similar word(s): counterfeit, imitative, assumed, fictitious, fictive, pretended, sham

10. (used especially of persons) not dependable in devotion or affection; unfaithful

- a false friend

Similar word(s): inconstant, untrue

Sentences with false as an adjective:

- false legislation

- a false witness

- a false friend, lover, or subject;  false to promises

- a false conclusion;  a false construction in grammar


1. in a disloyal and faithless manner

- his wife played him false

Similar word(s): faithlessly, traitorously, treacherously, treasonably


1. One of two options on a true-or-false test.

- The student received a failing grade for circling every true and false on her quiz.