The police conducted a raid and seized a large quantity of illicit drugs from the suspect's house.
The scandalous illicit affair between the two coworkers caused quite a stir in the office.
The black market thrives on illicit trade of goods that are otherwise banned or restricted.
Their illicit relationship was doomed from the start, as they both knew it was wrong.
The organization was shut down by authorities for engaging in illicit activities such as money laundering.