Is the trait in the pedigree below dominant or recessive?

The trait is recessive.

Explanation:

A dominant trait is the trait which suppresses the affect of the other recessive allele. A recessive trait is the trait whose allele is masked by the dominant allele.

In the following pedigree, we can see that a trait occurs only after 2 progenies. This is because the trait was recessive.

This should help