IPA: /ɪˈluːʒənl/
KK: /ɪˈluːʒənl/
Relating to something that is not real or is based on an illusion; deceptive or misleading.
The magician's tricks created an illusional experience for the audience.
Illusional → It is formed from "illusio" (from Latin, meaning deception or mockery) and the suffix "-al" (meaning pertaining to). The word "illusional" refers to something that pertains to or is characterized by illusion or deception.
Think of 'illusion' as a form of 'deception' — and the '-al' means it relates to that. So, something illusional is related to being deceptive.