underreckon

== English == === Etymology === From under- +‎ reckon. === Pronunciation === === Verb === underreckon (third-person singular simple present underreckons, present participle underreckoning, simple past and past participle underreckoned) (transitive) To reckon below what is right or proper; to underrate. Synonyms: underapproximate, understate; see also Thesaurus:underestimate Antonyms: overreckon; see also Thesaurus:overestimate