とんだ
とんだ · tonda · JLPT N1 · na-adj
terrible
とんだ = 飛んだ, past of 飛ぶ (to fly): things flew off the rails, so it means awful
とんだ is 飛んだ, the past form of 飛ぶ (to fly). Something that flies far beyond normal bounds is outrageous or terrible, as in とんだ災難 (awful misfortune).