Definition of lackadaisical:
So a girl who has been dull and lackadaisical, with no complexion and every prospect of evolution into a wall flower, may be transformed into a bright- eyed woman, generally nervous and restless, high colored, and possessed of a craving for continual activity and excitement.- "The Glands Regulating Personality", Louis Berman, M.D..
It is, however, probable, upon the husband's own confessions, that he had given his wife earlier cause for jealousy, and certainly from the time when he begins to reveal himself in correspondence there seems to be hardly a moment when some such cause was not in existence- in the person of this, that, or the other lackadaisical damsel or coquettish matron.- "Sterne", H.D. Traill.
Germany became the leading iron and steel country, but it was not an aggressive leadership, rather it was a lackadaisical acceptance of a fortuitous role; while Britain, often on deathbed but never a corpse, without question took the lead in international affairs.- "Greener Than You Think", Ward Moore.