Words For Irrational Behavior

adjective meaning crazy or mad; extremely enthusiastic or passionate

• The idea that the earth is flat is simply bonkers.
• She went absolutely bonkers when she found out she won the lottery.
• I can't believe he did that, he's totally bonkers.
• The amount of work she takes on is just bonkers, she never stops.

adjective a word naming an attribute of a noun, such as sweet, red, or technical

adverb a word or phrase that modifies or qualifies an adjective, verb, or other adverb

preposition a word governing, and usually preceding, a noun or pronoun and expressing a relation to another word or element in the clause

• The decision to cancel the project was made for no discernible reason.
• She just started crying for no discernible reason.
• He ghosted me for no discernible reason.
• The painting featured random splashes of color for no discernible reason.