non-native /nɒnˈneɪtɪv/adjective 1noun 1forms 1 adjective1 •Not native; not indigenous to a particular area; foreign; invasive.Use purple three-awn grass to replace the overused, invasive non-native weedy Mexican feather grass (Nassella tenuissima). — 2016 noun1 •A person who is not native. formsnon-natives