Translation of "attempted" into Japanese

He was found guilty of attempted murder for attacking his mother with a knife.

彼は自分の母親にナイフで切り付け殺人未遂で有罪になった。

For those who have attempted medication with poor results, there are alternative methods of treatment.

薬物療法を試しながらも成果が芳しくない人々には,代わりの治療法があります。