Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun underreckoning

1 sense of underreckoning

Sense 1
underestimate, underestimation, underrating, underreckoning -- (an estimation that is too low; an estimate that is less than the true or actual value)
       => estimate, estimation, approximation, idea -- (an approximate calculation of quantity or degree or worth; "an estimate of what it would cost"; "a rough idea how long it would take")