submissiveness - the trait of being willing to yield to the will of another person or a superior force etc.

inertia, inactivity, inactiveness - a disposition to remain inactive or inert; "he had to overcome his inertia and get back to work"

spiritlessness, apathy, indifference - the trait of lacking enthusiasm for or interest in things generally

torpidness, torpor, listlessness, torpidity - inactivity resulting from torpidity and lack of vigor or energy