Two-timing and Under cover

Two-timing adjective - Relating to or being a sexual encounter or relationship between a married person and someone other than their spouse.

Under cover and two-timing are semantically related In some cases you can replace phrase "Under cover" with "Two-timing", this phrases are similar.

Two-timing and under cover are semantically related in deceitful topic. Sometimes you can use "Two-timing" instead an adjective phrase "Under cover", if it concerns topics such as underhand.