Definition of "disillusioning" [disillusioning]

• Present participle of disillusion. (verb)

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• "It is kind of disillusioning to realize that even painterly paintings and other works that are considered entirely novel creations often involved analogous 'tracing' techniques rather than realistic forms just springing onto the canvas from a painter's mind's eye."
• ""disillusioning" to see Republicans who once supported the DREAM Act turn against it in the current climate."
• "It is important for the nation to know that this past year was a very disillusioning one; the wheels came off of Children First Mayor Michael Bloomberg's education initiative."