TRIVIAL

Not serious (7)

Solution has appeared in 3 crosswords (2 across and 1 down):

• Quick crossword No 16,630 — 2023-08-23 23:00:10
  23A: Unimportant (7)
• Quick crossword No 16,151 — 2022-02-11 00:00:34
  6D: Petty (7)
• Quick crossword No 16,041 — 2021-10-04 23:00:34
  22A: Not serious (7)