underestimate

(noun, verb)

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

Definition categories: cognition, misjudge