がむしゃら

na-adjective, noun

reckless; frantic; daredevil

Describes acting with wild, single-minded energy, often disregarding risk or consequences. Can be positive (passionate, all-out) or negative (foolhardy).

• 彼かれはがむしゃらに働はたらいて、ついに成せい功こうした。

  He worked frantically and finally succeeded.

• がむしゃらな運うん転てんは危き険けんだ。

  Reckless driving is dangerous.