|savˌwär|fa(a)](ə)r, -fe], -wȧ|f...]ə\ noun
Etymology: French savoir-faire, literally, knowing how to do
: a seemingly instinctive ability to act appropriately in a particular situation ; especially : adroitness in social relationships
manifested a deplorable lack of savoir faire, and shattered harmony on an occasion on which harmony was above all things to be desired — Spectator
Synonyms: see tact