[くろい, kuroi] (adj-i) (1) black; (2) dark; (3) illicit; wicked; underground; (P) #4152
[なれあい, nareai] (n) collusion; conspiracy; illicit intercourse; liaison
[よこれんぼ, yokorenbo] (n, vs) illicit love
[おかぼれ, okabore] (n, vs) unrequited love; illicit love; secret affections
[しつう, shitsuu] (n, vs) adultery; illicit intercourse
[じゃれん, jaren] (n) illicit love
[みちならぬこい, michinaranukoi] (exp, n) illicit love affair
[ふじゅんいせいこうゆう, fujun'iseikouyuu] (n) illicit sexual relationship
[ふりんあいて, furin'aite] (n) person with whom one is having an illicit love affair
[みつぞう, mitsuzou] (n, vs) illicit manufacturing; illicit distilling; moonshining
[みつぞうしゅ, mitsuzoushu] (n) illicitly brewed liquor; moonshine
[みつばい, mitsubai] (n, vs) smuggling; bootlegging; illicit trade; (P)
[やごう, yagou] (n, vs) illicit union; collusion; (P)
[いんぎんをつうじる, inginwotsuujiru] (exp, v1) to have a surreptitious sexual relationship with; to have an illicit love affair with