fictitious

formed or conceived by the imagination

• “a fabricated excuse for his absence”
• “a fancied wrong”
• “a fictional character”
• “used fictitious names”
• “a made-up story”

adopted in order to deceive

• “an assumed name”
• “an assumed cheerfulness”
• “a fictitious address”
• “fictive sympathy”
• “a pretended interest”
• “a put-on childish voice”
• “sham modesty”