Englishsavoir faire
noun
French
he had been faced with a situation that even his charm and savoir faire were unable to resolve:
social skill, social grace(s), urbanity, urbaneness, suaveness, suavity, finesse, sophistication, poise, aplomb, grace, adroitness, accomplishment, polish, style, smoothness, tact, tactfulness, diplomacy, soft skills, discretion, delicacy, sensitivity;
assurance, confidence, knowledge, know-how;
French savoir vivre;
informal savvy.
▷antonyms awkwardness, gaucheness.
savoir faire Oxford Dictionary of English