Not well adapted or suited to the purpose.

不适当的；不恰当的。

Not according to good manners; unseemly; unbecoming; indecent.

不合礼的；不妥当的；不相宜的；不正经的。

Not in accord with fact, truth, or reason; wrong; inaccurate.

不合事理的；谬误的；不正确的。