嶮しい[kewashii] precipitous
嶮岨[kenso] precipice
嶮路[kenro] steep path
天嶮[tenken] natural defences

アルプスの嶮[arupusunoken] steep pass in the Alps
峻嶮[shunken] steep
嶮峻[kenshun] steep
嶮難[kennan] steep

医療保険[iryouhoken] medical-care insurance
陰険[inken] tricky
火災保険[kasaihoken] fire insurance
危険[kiken] danger
危険因子[kikeninshi] risk factor

危険角度[kikenkakudo] critical angle
危険思想[kikenshisou] dangerous thoughts
危険視[kikenshi] regarded as dangerous
危険信号[kikenshingou] danger signal
危険人物[kikenjinbutsu] dangerous character