- a false (or sour) note.
- a false alarm.
- a false assumption.
- a false friend.
- a false start.
- a fictitious address.
- a mistaken view of the situation.
- a pretended interest.
- a purse of simulated alligator hide.
- a put-on childish voice.
- a suitcase with a false bottom.
- an assumed cheerfulness.
- an assumed name.
- decorated with imitation palm leaves.
- delusive expectations.
- delusive faith in a wonder drug.
- false hopes.
- false pretenses.
- false tales of bravery.
- false teeth.
- faux pearls.
- fictive sympathy.
- gave false testimony under oath.
- he behaved treacherously.
- her singing was off key.
- his wife played him false.
- it isn't fake anything.
- it's real synthetic fur.
- sham modesty.
- when lovers prove untrue.