unaccustomed

1. ADJ If you are unaccustomed to something, you do not know it very well or have not experienced it very often. 不习惯的; 不了解的[书面] [v-link ADJ 'to' n/-ing]

They were unaccustomed to such military setbacks. 他们不习惯这样的军事失败。

2. ADJ If you describe someone's behaviour or experiences as unaccustomed, you mean that they do not usually behave like this or have experiences of this kind. 不寻常的[书面] [ADJ n]

He began to comfort me with such unaccustomed gentleness. 他开始用异乎寻常的温柔安慰我。