The term "easy-moving" suggests something that flows effortlessly, and antonyms for this term could be words such as sluggish, stagnant, immobile or static. A sluggish object or person moves slowly and without energy; an immobile object doesn't move at all, while a static one doesn't change its position or form. Stagnant refers to something that is not flowing or continuously developing. Additionally, other antonyms for easy-moving could be clumsy, cumbersome, or burdensome, which suggest an object or person that is awkward or ungraceful in its movements. Overall, antonyms for easy-moving refer to conditions or objects that are characterized by a lack of motion, momentum or fluidity.