English edit

Etymology edit

under- +‎ express

Verb edit

underexpress (third-person singular simple present underexpresses, present participle underexpressing, simple past and past participle underexpressed)

  1. To express less than normally.
    Antonym: overexpress
    • 1999, Anthony Falikowski, Mastering Human Relations, page 414:
      In each of the triads, one type overexpresses the characteristic faculty of the triad, another underexpresses it and the third is most out of touch with it.