1.  greenness(n = noun.attribute) verdancy, verdure - the lush appearance of flourishing vegetation;

2.  greenness(n = noun.state) - the state of not being ripe;
Antonym: ripeness
Derived form adjective green₃

3.  greenness(n = noun.attribute) green, viridity - green color or pigment; resembling the color of growing grass;
Derived form adjective green₁

1.  The quality of being green; viridity; verdancy; as, the greenness of grass, or of a meadow. [1913 Webster]

2.  Freshness; vigor; newness. [1913 Webster]

3.  Immaturity; unripeness; as, the greenness of fruit; inexperience; as, the greenness of youth. [1913 Webster]

N  greenness, green, blue and yellow, vert, emerald, verd antique, verdigris, malachite, beryl, aquamarine, absinthe, cr=eme de menthe, terre verte, verditer, verdine, copperas, greenness, verdure, viridity, viridescence, verditure, glaucoma, rokunaisho, green, verdant, glaucous, olive, olive green, green as grass, verdurous, emerald green, pea green, grass green, apple green, sea green, olive green, bottle green, coke bottle green, greenish, virent, virescent, green (learner), new, inexperienced, novice, (unskillful), green (ill, sick), green with envy, the green grass of Ireland, the wearing of the green, greenness, green, blue and yellow, vert, emerald, verd antique, verdigris, malachite, beryl, aquamarine, absinthe, cr=eme de menthe, terre verte, verditer, verdine, copperas, greenness, verdure, viridity, viridescence, verditure, glaucoma, rokunaisho, green, verdant, glaucous, olive, olive green, green as grass, verdurous, emerald green, pea green, grass green, apple green, sea green, olive green, bottle green, coke bottle green, greenish, virent, virescent, green (learner), new, inexperienced, novice, (unskillful), green (ill, sick), green with envy, the green grass of Ireland, the wearing of the green.