Example : A fabricated excuse for his absence.
A fancied wrong.
A fictional character.

Synonyms : fabricated, fancied, fictional

Example : An assumed name.
An assumed cheerfulness.
A fictitious address.
Fictive sympathy.
A pretended interest.
A put-on childish voice.
Sham modesty.

Synonyms : assumed, false, fictive, pretended, put on, sham