phony smile

Translations
фальшивая улыбка
She gave a phony smile to hide her true feelings.
Она сделала фальшивую улыбку, чтобы скрыть свои истинные чувства.
Definitions
A phony smile is a smile that is insincere or fake, often used to mask true feelings or emotions, typically to convey friendliness or politeness without genuine warmth or happiness.
Words
phony

adjective
фальшивая
smile

noun
улыбка