- underestimate: make too low an estimate of; "he underestimated the work that went into the renovation"; "Don't underestimate the danger of such a raft trip on this river"
- Cost overrun, "cost increase," or "budget overrun" is an unexpected cost incurred in excess of a budgeted amount, due to cost underestimation. ...
- (underrated) Not given enough recognition for its quality
- (Underrated) wrestler who getting too less pushing.