1. in a manner that deceives or misleads; deceptively
2. in a way that appears to be real or true but is not; seemingly

Examples

• The magician illusively made the coin disappear from the audience's view.
• The painting's perspective illusively creates the impression of great depth.
• The advertisement illusively suggests that the product will solve all your problems.
• The mirror illusively doubled the size of the small room.
• His calm demeanor illusively masked his inner anxiety.
• The stage lighting illusively transformed the simple set into an elaborate palace.