Adj. inattentive; unobservant, unmindful, heedless, unthinking, unheeding, undiscerning^; inadvertent; mindless, regardless, respectless^, listless &c (indifferent) 866; blind, deaf; bird-witted; hand over head; cursory, percursory^; giddy-brained, scatter-brained, hare-brained;