This whole project could be fruitful and dredge up even more dirt on Nixon.
Many stars had to align in order for this campaign to be so fruitful.
After a fruitful year (earning $81 total) he expanded his enterprise.
c.1300, of trees, from fruit + -ful. Related: Fruitfully; fruitfulness. Of animals or persons from early 16c.; of immaterial things from 1530s.