JENESAISQUOI

It can't easily be described in French (2,2,4,4)

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

• Quick crossword No 16,687 — 2023-10-30 00:00:00
  7D: Undefinable quality (2,2,4,4)
• Quick crossword No 16,539 — 2023-05-09 23:00:02
  3D: Something indefinable (2,2,4,4)
• Quick crossword No 16,350 — 2022-09-30 23:00:52
  1A: It can't easily be described in French (2,2,4,4)