Slowness is the quality of moving, happening, or being done at a low speed. A turtle's slowness helps it conserve energy as it searches for food. The slowness of a glacier's movement means it might take decades to travel just a few miles. When you notice the slowness of a checkout line at the store, you're observing how long it takes for each person to complete their transaction.

Slowness isn't always a problem. Sometimes it's exactly what a situation needs. The slowness of a careful edit improves a story. The slowness of simmering soup develops richer flavors than rushing it would. A gymnastics coach might ask an athlete to practice a flip in slow motion first, mastering each part of the movement before attempting it at full speed.

However, slowness can frustrate us when speed matters. The slowness of a computer loading a program tests your patience. The slowness of learning a difficult skill, like playing violin, requires persistence.

Related words include sluggishness, which suggests slowness with a hint of laziness or lack of energy, and deliberateness, which describes careful, intentional slowness. The opposite of slowness is speed or swiftness.