disinclined to work or exertion; "faineant kings under whose rule the country languished"; "an indolent hanger-on"; "too lazy to wash the dishes"; "shiftless idle youth"; "slothful employees"; "the unemployed are not necessarily work-shy"
Someone who is slothful is lazy and unwilling to make an effort to work. He was not slothful: he had been busy all night. = idle. lazy or not active