false

not in accordance with the fact or reality or actuality

• “gave false testimony under oath”
• “false tales of bravery”

arising from error

• “a false assumption”
• “a mistaken view of the situation”

erroneous and usually accidental

• “a false start”
• “a false alarm”

deliberately deceptive

• “hollow (or false) promises”
• “false pretenses”

inappropriate to reality or facts

• “delusive faith in a wonder drug”
• “delusive expectations”
• “false hopes”

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

• “it isn”
• “s real synthetic fur”
• “faux pearls”
• “false teeth”
• “decorated with imitation palm leaves”
• “a purse of simulated alligator hide”

designed to deceive

• “a suitcase with a false bottom”

inaccurate in pitch

• “a false (or sour) note”
• “her singing was off key”

adopted in order to deceive

• “an assumed name”
• “an assumed cheerfulness”
• “a fictitious address”
• “fictive sympathy”
• “a pretended interest”
• “a put-on childish voice”
• “sham modesty”

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

• “a false friend”
• “when lovers prove untrue”

in a disloyal and faithless manner

• “he behaved treacherously”
• “his wife played him false”