goes the bottom (verb) sink: fall in, go under
Sinonime: at one's convenience, at one's leisure,
calmly, comfortably, composedly,
deliberately, dilatorily,
easily,
gradually, inactively, indolently, laggardly, langorously, languidly, lazily, lethargically, lingeringly, listlessly, slowly, sluggishly, taking one's time, tardily, torpidly, with delay, without haste
Antonime: hectically, hurriedly