Entry 4 senses · 2 variants Webster, 1913 Overly · O·ver·ly · IPA /ˈoʊvərliː/ a. adv. 01 a. Careless; negligent; inattentive; superfical; not thorough. 1. Careless; negligent; inattentive; superfical; not thorough.[Archaic] 2. Excessive; too much.[R.] 02 adv. In an overly manner. 1. In an overly manner.[Archaic] 2. Excessively.