underestimate
noun
1. an estimation that is too low; an estimate that is less than the true or actual value
Similar word(s): underestimation, underrating
Definition categories: thought, approximation, estimate, estimation, idea
verb
1. assign too low a value to
- Don't underestimate the value of this heirloom-you may sell it at a good price
Similar word(s): undervalue
Definition categories: cognition, value
2. make a deliberately low estimate
Similar word(s): lowball
Definition categories: cognition, approximate, estimate, gauge, guess, judge
3. 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
Similar word(s): underrate