1.  mellowness(n = noun.feeling) - kindheartedness through maturity or old age;
is a kind of kind-heartedness, kindheartedness
Derived form adjective mellow₃

2.  mellowness(n = noun.cognition) - a taste (especially of fruit) that is ripe and of full flavor;
is a kind of gustatory perception, gustatory sensation, taste, taste perception, taste sensation
Derived form adjective mellow₂

3.  mellowness(n = noun.attribute) fullness, richness - the property of a sensation that is rich and pleasing; "the music had a fullness that echoed through the hall"; "the cheap wine had no body, no mellowness"; "he was well aware of the richness of his own appearance"
is a kind of property
Derived form adjective mellow₄

4.  mellowness(n = noun.attribute) - a soft shade of a color; "a mellowness of light and shade not attainable in marble"
is a kind of shade, tincture, tint, tone
Derived form adjective mellow₄

5.  mellowness(n = noun.attribute) - geniality, as through the effects of alcohol or marijuana;
is a kind of affability, affableness, amiability, amiableness, bonhomie, geniality
Derived forms adjective mellow₅, adjective mellow₁

   Quality or state of being mellow. [1913 Webster]

N  preparation, providing, provision, providence, anticipation, precaution, preconcertation, predisposition, forecast, rehearsal, note of preparation, arrangement, clearance, adjustment, tuning, equipment, outfit, accouterment, armament, array, ripening, maturation, evolution, elaboration, concoction, digestion, gestation, batching, incubation, sitting, groundwork, first stone, cradle, stepping-stone, foundation, scaffold, scaffolding, echafaudage, training, inurement, novitiate, cooking, cookery, brewing, culinary art, tilling, plowing sowing, semination, cultivation, preparedness, readiness, ripeness, mellowness, maturity, un impromptu fait a loisir, preparer, trainer, pioneer, trailblazer, avant-courrier, avant-coureur, voortrekker, sappers and miners, pavior, navvy, packer, stevedore, warming pan, preparing, in preparation, in course of preparation, in agitation, in embryo, in hand, in train, afoot, afloat, on foot, on the stocks, on the anvil, under consideration, brewing, batching, forthcoming, brooding, in store for, in reserve, precautionary, provident, preparative, preparatory, provisional, inchoate, under revision, preliminary, prepared, in readiness, ready, ready to one's band, ready made, ready cut and dried: made to one's hand, handy, on the table, in gear, in working order, in working gear, snug, in practice, ripe, mature, mellow, pukka, practiced, labored, elaborate, highly-wrought, smelling of the lamp, worked up, in full feather, in best bib and tucker, in harness, at harness, in the saddle, in arms, in battle array, in war paint, up in arms, armed at all points, armed to the teeth, armed cap a pie, sword in hand, booted and spurred, in utrumque paratus, semper paratus, on the alert, at one's post, in preparation, in anticipation of, against, for, abroach, a bove majori discit arare minor, looking before and after, si vis pacem para bellum.