lose one's allure
魅力を失う
lose [be out of] one's bearings in the woods
森で道に迷う
lose one's confidence
自信を失う
lose one's countenance
落ち着きを失う,あわてる
lose one's eyesight
失明する
lose [miss] one's footing
足を踏みはずす
lose one's fortune gambling
ギャンブルで身代を失う
lose one's good name
名声を失う
lose one's gourd
気が狂う
lose one's head
冷静さ[分別]を失う,取り乱す