underestimated
un-der-es-ti-mat-ed
adjective
Describing something whose importance, ability, or value was judged too low.
"He was an underestimated talent in the team."
verb
Assessed something's value, ability, or importance as lower than it truly is.
"We underestimated the difficulty of the task."
Thesaurus
Synonyms: lowball, underestimate, undervalue, underrating, underreckoning, underestimation, underrate
Antonyms: overestimate, overrate, overvalue