underperform Synonyms

underachieve be rejected be worse than anticipated not pass all through be below expectations fail to meet expectations be demoted suffer defeat not succeed meet with disaster be worse than predicted fail to live up to expectations be found lacking be much less successful be less effective than be found deficient be far from meeting the expectations act unsatisfactorily act deficiently not fulfill the expectations fall far short of expectations not come up to the mark fall short of expectations not come up to scratch be in vain flunk flounder flop fail drift disappoint collapse choke choking choked lose miscarry be frustrated be defeated be ruined lay an egg hit the skids flame out bomb out drop out backfire break down abort