Origin of illusory
Related formsil·lu·so·ri·ly, adverbil·lu·so·ri·ness, nounun·il·lu·so·ry, adjective
Can be confusedelusive illusory
Examples from the Web for illusoriness
If it is claimed that this meaning is illusory, I eagerly desire to know on what solid ground its illusoriness can be established.
The thought of brevity naturally draws after it that of illusoriness.The Expositor's Bible: The Psalms, Vol. 2|Alexander Maclaren
The secret of the illusoriness is in the necessity of a succession of moods or objects.Essays, Second Series|Ralph Waldo Emerson
That which is brought home to him is the illusoriness and hollowness of things when taken in the spirit of active endeavor.The Approach to Philosophy|Ralph Barton Perry