The Collaborative International Dictionary
vividity
vividity \vi*vid"i*ty\ (v[i^]*v[i^]d"[i^]*t[y^]), n. The quality or state of being vivid; vividness. [R.]
Wiktionary
vividity
n. 1 (context uncountable rare English) The quality or state of being vivid. 2 (context countable English) A vivid thing.