a. [ L. incogitans; pref. in- not + cogitans, p. pr. of cogitare to think. See Cogitate. ] Thoughtless; inconsiderate. [ R. ] Milton. [ 1913 Webster ]
Men are careless and incogitant. J. Goodman. [ 1913 Webster ]
adv. In an incogitant manner. [ 1913 Webster ]