Synonyms of the word 
ILLUSIVE → ILLUSORY - UNREAL
illusive
- adj. Subject to or pertaining to an illusion, often used in the sense of an unrealistic expectation or an unreachable…
illusory
- adj. Resulting from an illusion; deceptive, imaginary, unreal.
unreal
- adj. fake; not real.
- adj. (slang) larger or more fantastic than typical of real life.
If you are interested in words, visit the following sites :
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- 1word.ws/illusive to play with words, suffixs, prefixs, etc.