modified
-MINDED51 absent-minded suggests an aimless wandering of the mind away from the immediate situation, often implying a habitual tendency of this kind the absent-minded professor; abstracted suggests a withdrawal of the mind from the immediate present and a serious concern with some other subject; preoccupied implies that the attention cannot be readily turned to something new because of its concern with a present matter; distrait suggests inability to concentrate, often emphasizing such a condition as a mood; distraught connotes agitation along with an inability to concentrate, specifically because of worry, grief, etc.; inattentive implies a failure to pay attention, emphasizing such behavior as a lack of discipline
See absent-minded in Webster's New World Roget's A-Z Thesaurus II
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