Definitions

1. noun

A reason or motive for doing something, especially a weak or insufficient one.

“The disreason for his decision was a personal vendetta against the company.”

2. noun

A lack of good judgment or sense.

“His disreason led him to make a rash investment in the stock market.”

3. verb

To give a false or inadequate reason for something.

“She disreasoned her way out of attending the meeting by saying she had a family emergency.”