Crossword Genius

Reason the physicist stayed in bed?

Ross

I believe the answer is:

inertia

(Other definitions for inertia that I've seen before include "Slowness to move or act" , "Disposition to do nothing" , "Slowness to act, lassitude" , "Tendency to do nothing or to remain unchanged" , "Lack of inclination to move" .)

I've seen this clue in The New York Times.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.