underarm

Universal Words adjective, adverb adjective 1 [onlybeforenoun] connected with a person's ARMPIT: underarm hair / deodorant / sweating 2 an underarm throw of a ball is done with the hand kept below the level of the shoulder compareOVERARM adverb if you throw, etc. underarm, you throw keeping your hand below the level of your shoulder compareOVERARM