Words For Eccentric Behavior

adjective crazy or eccentric; mentally unstable

• The scientist's theory was considered batty by his peers.
• She's a bit batty, always talking to her plants like they're her children.
• That movie was so batty, I couldn't follow the plot at all.
• His idea to quit his job and travel the world seemed a bit batty at first, but it ended up being the best decision he ever made.

noun a crazy or eccentric person

• The scientist dismissed the idea as wackadoo and not based on any empirical evidence.
• I can't believe you fell for that wackadoo conspiracy theory!
• That movie was so wackadoo, I couldn't even follow the plot.
• Her mind was a wackadoo whirlwind of thoughts and ideas.