deem /diːm/verb 5noun 1forms 7 verb5 •To hold in belief or estimation; to adjudge as a conclusion; to regard as being; to evaluate according to one's beliefs; to account.She deemed his efforts insufficient. •To think, judge, or have or hold as an opinion; to decide or believe on consideration; to suppose.And deemest thou as those who pore, / With aged eyes, short way before? / Think'st Beauty vanished from the coast / Of matter, and thy darling lost? — 1847 •(no longer used) To judge, to pass judgment on; to doom, to sentence. •(no longer used) To adjudge, to decree. •(no longer used) To dispense (justice); to administer (law). noun1 •(no longer used) An opinion, a judgment, a surmise. formsdeem'd · deemed · deemedst · deeming · deemeth · deems · deemest