a.

1. 忧虑的，恐惧的[（+about/for/of）][+（that）]
   We were apprehensive that they might forget.

   我们担心他们会忘记。

2. 善于领会的；敏悟的
   She is an apprehensive girl.

   她是个善解人意的女孩。

3. 知晓的，有认识力的[（+of）]
   He is apprehensive of his own fully.

   他认识到自己的愚蠢行为。

adj.

1. anticipating with anxiety or fear.
2. rare relating to perception or understanding.