Meaning of いんじゃ in Japanese

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Definition of いんじゃ

いんじゃ(inja) 【隠者】

いんじゃん(injan)

Or rather, is it not just pathetic that I think such whiny thoughts like this?

Isn't it better to get drunk and cut loose once in a while and blow off the tension of daily frustration?

もうそろそろ腰を落ち着けてもいいんじゃないの。

It's about time you settled down for good.

それはちょっとひどいんじゃないでしょうか。

It is too cruel, I should say.

こんな会議かいぎをしてするもらちがあかないんじゃないかな。

Having this meeting isn't going to do the trick, is it?

この辺りではっきり不満ふまんを言ってもいいんじゃないですか。

It is high time we aired some of our gripes.

このスープは何か足した方がいいんじゃないかしら。

This soup needs something to pick it up.

おかしいんじゃない？

Are you crazy?

おいおい、一枚看板いちまいかんばんのお前が来れないんじゃ、今日の合コン盛り上がらないよ。

We're counting on you to be the life of the party. It'll bomb if you don't come.

He lives a freewheeling life. I think he ought to settle down a little.