Exuberant, a.
Etymology: [L. exuberans, exuberantis, p. pr. of exuberare to be abundant; ex + uberare to be fruitful, fr. uber fruitful, fertile, uber udder: cf. F. exubérant. See Udder.]
Characterized by abundance or superabundance; plenteous; rich; overflowing; copious or excessive in production; as, exuberant goodness; an exuberant intellect; exuberant foliage. "Exuberant spring." Thomson. -- Ex*u"ber*ant*ly, adv.
Shades of meaning
Fernald has no entry of its own for exuberant; he lists it under plentiful.
He lists it without comment; the entries above explain its neighbors.