1 adjective making strong impressionsuaithinseach adj1 c m ufeiceálach adj1 c m uthey ran a high-impact campaignrith siad feachtas a chuaigh i gcion go mór ar dhaoine2 adjective IND able to withstand impacthigh-impact plasticplaisteach ardtuinsimh3 adjective SPORhigh-impact aerobicsaeróbaic ardstruis