English edit

Etymology edit

under- +‎ exercise

Noun edit

underexercise (uncountable)

  1. Insufficient exercise.

Verb edit

underexercise (third-person singular simple present underexercises, present participle underexercising, simple past and past participle underexercised)

  1. (intransitive) To take too little exercise.
    Overeating and underexercising will lead to obesity.