Iki (いき, often written 粋) is a traditional aesthetic ideal in Japan. The basis of iki is thought to have formed among urbane mercantile class (Chōnin) in Edo in the Tokugawa period (1603–1868). Iki is an expression of simplicity, sophistication, spontaneity, and originality.
Yabo (野暮) is a Japanese term describing something that is unaesthetic or unappealing. Yabo is the antonym of iki. Busui (無粋), literally "non-iki", is synonymous with yabo. ... Today, the word yabo is used more frequently than iki.