Noah Webster
Slowness
SLOWNESS, noun
1. Moderate motion; want of speed or velocity. Swifness and slowness are relative ideas.
2. Tardy advance; moderate progression; as the slowness of an operation; slowness of growth or improvement.
3. Dullness to admit conviction or affection; as slowness of heart.
4. Want of readiness or promptness; dullness of intellect.
5. Deliberation; coolness; caution in deciding.
6. Dilatoriness; tardiness.