信用出来ない

cannot trust

→ 信用
phrase Rare #37,025
cannot trust Used to say that a person or thing is unreliable or not worthy of trust. More commonly written as 信用できない.
JA: 彼はよく嘘をつくから、信用出来ない。
EN: He often lies, so I can't trust him.

彼は良くうそをつくから信用出来ない

He lies often, so you can't trust him.

ここの人達は信用出来ない

The people here can't be trusted.

— ラスト、コーション (2007)

彼はよく嘘をつくから信用出来ない

He lies a lot, so you can't trust him.

彼はある程度まで信用出来る全面的に信用出来ない

He can be trusted to some extent, but not completely.