RECALCITRANT

Stubbornly resistant (12)

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

• Quick crossword No 16,631 — 2023-08-24 23:00:06
  4D: Stubbornly resistant to control (12)
• Quick crossword No 15,909 — 2021-05-03 23:00:13
  11A: Stubbornly resistant (12)