危なっかしい

(1)lacking or indicating lack of confidence or assurance; "uncertain of his convictions"; "unsure of himself and his future"; "moving with uncertain (or unsure) steps"; "an uncertain smile"; "touched the ornaments with uncertain fingers"

(2)信用または保証が足りない、または足りないことを示している

(1)uncertain of his convictions

(2)彼の信念について確信がない

(3)unsure of himself and his future

(4)彼自身と彼の未来について確信がない

(5)moving with uncertain (or unsure) steps

(6)あやふやな（または、自信のない）足取りで移動する

(7)an uncertain smile

(8)ためらいがちな微笑

(9)touched the ornaments with uncertain fingers

(10)ためらいがちな指でその飾りに触れた