forget的形容词形式难忘的

My mother has become very forgetful and confused recently.

我妈妈近来变得非常健忘，糊里糊涂。

His father began to lose his memory bit by bit, becoming increasingly forgetful.

他的`父亲开始一点点地失去记忆，变得越来越健忘。

She has become very forgetful in recent years.

近年来她变得十分健忘。

It's adult who are really forgettable, not children.

真正把人忘记的是大人，而不是小孩。

Bridge cards are never forgettable during the holiday.

节日大假自然少不了桥牌。