underchallenge

• under- +‎ challenge

underchallenge (third-person singular simple present underchallenges, present participle underchallenging, simple past and past participle underchallenged)

1. (transitive) To challenge to an insufficient degree.
   • 2010, Jan Fawcett, M.D., Bernard Golden, Ph.D., Nancy Rosenfeld, New Hope For People With Bipolar Disorder Revised 2nd Edition: Your Friendly ...

     If you underchallenge yourself, the goal won't serve its purpose of providing meaning and orienting you to the future.

underchallenge (plural underchallenges)

1. A challenge that is not sufficiently difficult.
   • 2003, Paula Kramer, Jim Hinojosa, Charlotte Brasic Royeen, Perspectives in Human Occupation: Participation in Life‎:

     An underchallenge also reflects an imbalance.