ADULTERY

Infraction of one of the Ten Commandments (8)

Solution has appeared in 2 crosswords (1 across and 1 down):

• Quick crossword No 15,744 — 2020-10-21 23:00:09
  9A: Marital infidelity (8)
• Quick crossword No 15,460 — 2019-11-25 00:00:36
  13D: Infraction of one of the Ten Commandments (8)