険しい

(1) 振る舞いや態度において厳しい局面において気難しい(of a stern or strict bearing or demeanor; forbidding in aspect; "an austere expression"; "a stern face")(of a stern or strict bearing or demeanor)(forbidding in aspect)

⇒厳しい顔つき(forbidding in aspect)

(2) 非常に急な際立ってほとんど垂直な正面を持つこと(very steep; having a prominent and almost vertical front; "a bluff headland"; "where the bold chalk cliffs of England rise"; "a sheer descent of rock")(very steep)(having a prominent and almost vertical front)

⇒岩石の垂直の下降(having a prominent and almost vertical front)

(3) 困難または試練でいっぱいの(full of hardship or trials; "the rocky road to success"; "they were having a rough time")(full of hardship or trials)

⇒彼らはつらい時期を過していた(full of hardship or trials)

(4) 不快なほどに堅い(unpleasantly stern; "wild and harsh country full of hot sand and cactus"; "the nomad life is rough and hazardous")(unpleasantly stern)

⇒遊牧民の人生は、荒くて、危険である(unpleasantly stern)

(5) 鋭く傾斜しているさま(having a sharp inclination; "the steep attic stairs"; "steep cliffs")(having a sharp inclination)

⇒険しい崖(having a sharp inclination)

(6) 危機または非常事態になる、または、危機または非常事態に近づく(being in or verging on a state of crisis or emergency; "a critical shortage of food"; "a critical illness"; "an illness at the critical stage")(being in or verging on a state of crisis or emergency)

⇒危機的な段階の病気(being in or verging on a state of crisis or emergency)