a.

1. 虚构的；非真实的
   His account of the incident was totally fictitious.

   他对这一事故的描述完全是虚构的。

2. 假的，假装的
   They bought the materials under fictitious names.

   他们用假名买下了这些材料。

adj.

1. not real or true; imaginary or invented.
2. relating to or denoting the characters and events found in fiction.