Synonyms and related words :
arrested, babbling, back, backward, behind, behindhand, belated, blithering, blocked, bridled, burbling, checked, constrained, controlled, crackbrained, cracked, crazy, cretinistic, cretinous, curbed, delayed, delayed-action, detained, dithering, driveling, drooling, guarded, half-baked, half-witted, held up, hung up, idiotic, imbecile, imbecilic, impeded, in a bind, in abeyance, in check, in leading strings, in remission, inhibited, jammed, late, latish, maundering, mentally defective, mentally deficient, mentally handicapped, mentally retarded, mongoloid, moratory, moronic, never on time, not all there, obstructed, on leash, overdue, pent-up, restrained, set back, simple, simpleminded, simpletonian, slobbering, slow, slowed down, stopped, subnormal, tardy, under control, under discipline, under restraint, unpunctual, unready, untimely