Synonyms for Grown:

adj.

additional (adjective)
extended, more, increased, larger, enlarged, expanded, accrual, amalgamated, additional, augmented, raised, Annexed, incremented.
adult (adjective)
of age.
exaggerated (adjective)
inflated.
of age (adjective)
adult, developed, grown up, mature.
produced (adjective)
raised.

n.

fully fledged, growth, infantile, immature. full-fledged, youth, ripe, grown up, of age, full-blown. grown (noun)
big, grownup, fully grown, mature, full-grown, adult.
of age (noun)
grown up.

v.

expanded (verb)
stretched, spread, thickened, dilated, swelled, Distended, developed, engorged.
increased (verb)
elevated, Broadened, advanced, reinforced, lengthened, Heightened, upgraded, Boosted, Amplified, multiplied, maximized, magnified, accrued, Grew, Widened, inflated, fattened, burgeoned, added.

Other synonyms:

full-blown, fully fledged, full-fledged. grown up, infantile. ripe. growth. grownup
grownup.
mature
mature.
Other relevant words:
fully grown, mature, grownup, immature, full-grown, fully fledged, adult, full-blown, big, full-fledged, of age, ripe, grown up.

Usage examples for grown

  1. It seems to me that for a grown up man.... – The Golden Scarecrow by Hugh Walpole
  2. When she is grown up, she will be free to follow either her mother or her father." – The Complete Historical Romances of Georg Ebers by Georg Ebers
  3. I have grown years older in a week. – The Complete Project Gutenberg Works of George Meredith by George Meredith