Adjective

(en adjective)

(formal) Highly fertile; able to produce offspring.

* 2001 , Massimo Livi Bacci, A Concise History of World Population? , page 9

The number of children per woman depends, as has been said, on biological and social factors which determine: (1) the frequency of births during a woman's fecund' period, and (2) the portion of the ' fecund period--between puberty and menopause--effectively utilized for reproduction.

* '>citation

(figuratively) Leading to new ideas or innovation.

* 1906 , , "The Basis of Pragmatism in the Normative Sciences", in The Essential Pierce: Selected Philosophical Writings? , volume II, page 373

This idea of Aristotle's has proved marvellously fecund ; and in truth it is the only idea covering quite the whole area of cenoscopy that has shown any marked uberosity.

Adjective

(en adjective)

Not fecund.

*{{quote-news, year=2007, date=September 7, author=Lawrence Downes, title=A Box of Worms, work=New York Times citation

, passage=My soil is awful, an unfecund combination of sand, rocks and roots, the ungenerous leavings of Long Island’s glacially bulldozed moraine. }}