Synonyms and related words :
acclimated, acclimatized, accommodated, accomplished, accustomed, adapted, adept, adjusted, au fait, blase, capable, case-hardened, competent, conditioned, cosmopolitan, cosmopolite, efficient, expert, familiarized, hardened, in the know, inured, knowing, knowledgeable, master, masterly, mature, matured, naturalized, not born yesterday, old, old-line, old-time, on the ball, orientated, oriented, practical, practiced, prepared, professional, proficient, qualified, ripe, ripened, run-in, sagacious, sage, savvy, seasoned, shrewd, skilled, skillful, sophisticated, trained, tried, tried and true, used to, versed, vet, veteran, well-informed, well-versed, wise, wont, wonted, world-wise, worldly, worldly-wise