What are the opposites of the following words: NARROW, FIRST, UGLY, SHARP, FEEBLE, STRAIGHT, DIRTY, LONG, COMPLEX, LENGTHY?

Here are the opposites for each word:

1. NARROW: $\boxed{1}$
2. FIRST: $\boxed{3}$
3. UGLY: $\boxed{5}$
4. SHARP: $\boxed{1}$
5. FEEBLE: $\boxed{3}$
6. STRAIGHT: $\boxed{5}$
7. DIRTY: $\boxed{3}$
8. LONG: $\boxed{5}$
9. COMPLEX: $\boxed{4}$
10. LENGTHY: $\boxed{1}$