一概(いちがい)にunconditionally, as a rule

お酒(さけ)が体(からだ)に悪(わる)いと一概(いちがい)に断言(だんげん)出来(でき)ません。

You cannot unconditionally claim that alcohol is bad for the body.

彼女(かのじょ)が一概(いちがい)に悪(わる)いとは言(い)えない。彼(かれ)にも責任(せきにん)がある。

It can't be said that she is to blame unconditionally. He also has responsibility.

犯罪(はんざい)を犯(おか)した人(ひと)の家庭(かてい)環境(かんきょう)が悪(わる)いとは一概(いちがい)に言(い)えません。

It cannot be unconditionally stated that the home environment of a person who has committed a crime is bad.

一人暮(ひとりぐ)らしの老人(ろうじん)の死因(しいん)が餓死(がし)や病死(びょうし)だと一概(いちがい)に断定(だんてい)しようがない。

It is impossible to unconditionally conclude that the cause of death among elderly people living alone is starvation or disease.

一概(いちがい)にそうとは言(い)えませんが、タバコは体(からだ)に悪(わる)いので私(わたし)は吸(す)わぬと決(き)めています。

I wouldn't say unconditionally, but I have decided not to smoke because it's bad for the body.