Open English Wordnet
Nouns
(n)profusion, profuseness, richness, cornucopiathe property of being extremely abundant“the profusion of detail”, “the idiomatic richness of English”
(n)fullness, mellowness, richnessthe 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”
(n)richness, rankness, prolificacy, fertilitythe property of producing abundantly and sustaining vigorous and luxuriant growth“he praised the richness of the soil”, “weeds lovely in their rankness”
(n)impressiveness, grandness, magnificence, richnesssplendid or imposing in size or appearance“the grandness of the architecture”, “impressed by the richness of the flora”