覚束無い

(1)not established beyond doubt; still undecided or unknown; "an uncertain future"; "a manuscript of uncertain origin"; "plans are still uncertain"; "changes of great if uncertain consequences"; "without further evidence his story must remain uncertain"

(2)全く確立していない

(3)まだ未決定であるか未知の

(4)lacking clarity or distinctness; "a dim figure in the distance"; "only a faint recollection"; "shadowy figures in the gloom"; "saw a vague outline of a building through the fog"; "a few wispy memories of childhood"

(5)明快さまたは特異性が不足しているさま

(6)fraught with uncertainty or doubt; "they were doubtful that the cord would hold"; "it was doubtful whether she would be admitted"; "dubious about agreeing to go"

(7)不確実性あるいは不確かさをはらんだ

(8)liable to be erroneous or misleading; "an undependable generalization"

(9)誤りのある、または誤解されやすい

(10)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"

(11)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