Imaginary
'imaginary' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for phantom that I've seen before include "Apparition, spectre" , "Blush" , "Ballet-dancing costume" , "Sightseeing journey" , "Illusion (at the opera?)" .)
(Other definitions for pretend that I've seen before include "Imagine" , "Make believe - imply falsely" , "Simulate - make up" , "Sham" , "make a false claim" .)
'imaginary' is the definition.
(I know that imaginary can be written as notional)
This is all the clue.
(Other definitions for notional that I've seen before include "Like ideas of" , "Theoretical" , "Existing as theory, not existing in reality" , "Speculative, not based on fact" , "Assumed to be correct for particular purpose, say estimate" .)
'imaginary' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for unreal that I've seen before include "Illusory, imaginary" , "Dreamlike" , "Not actual or credible" , "Fanciful" , "Lacking in substance" .)
(Other definitions for madeup that I've seen before include "Not true!" , "Became chums again" .)
'imaginary' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for fictional that I've seen before include "Made-up" , "Not true" , "Like novel" , "Unreal" , "Conceived by the imagination" .)
'imaginary' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for chimerical that I've seen before include "Wild; fanciful" , "Fancied" .)