false smile
- fakeNot the real thing
- smirkPleased, superior smile
- grimaceTwisted expression of displeasure
- maskFace-worn concealment
- insincereFeigning belief or feeling
plastic · forced · hollow · teeth · polite · strained · grin · pretend · facade · superficial · phony · tight-lipped · cheeks · eyes · deceptive · courtesy · sociopath · charm