trendy I. \ˈtrendē, -di\adjective (-er/-est-es) Etymology:trend (II) + -y (I) 1.: very fashionable : up-to-date : chic < he's a trendy dresser — Sunday Mirror > 2.: faddish < a newspaper of trendy triviality — J.H.Plumb > • trend·i·ly\-dəlē, -dəlē \adverb • trend·i·ness\-dēnə̇s, -də̇n- \noun II. noun (-es) : one who slavishly keeps up with trends (as in fashion or culture)