I. | ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ˌ ̷ ̷ intransitive verb
Etymology: under (I) + exercise, v.
: to exercise too little
overeating and underexercising
II. noun
Etymology: under (III) + exercise, n.
: inadequate amount or frequency of exercise
I. | ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ˌ ̷ ̷ intransitive verb
Etymology: under (I) + exercise, v.
: to exercise too little
overeating and underexercising
II. noun
Etymology: under (III) + exercise, n.
: inadequate amount or frequency of exercise
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012