Illicit is an adjective applied to no-nos. It's used to talk about things people aren't supposed to do. Something illicit is not permitted especially because it is illegal: …

What is difference between illicit and elicit?

Elicit often mean 'to get something'. Illicit, on the other hand, describes something illegal. Because they are pronounced the same but have different meanings, we call these words homophones. These words are often confused – even by native English speakers.

What does illicit relationship mean?

UK /ɪˈlɪsɪt/ DEFINITIONS2. an illicit relationship, activity, or situation is one that people do not approve of. an illicit relationship with a married man.