What does "counterintuitive" mean?

Contrary to intuition or common sense.

What is a synonym for "counterintuitive"?

Common synonyms include: baffling, befuddling, grugru, paradoxical, perceived illogic.

Pronounced //ˌkaʊntəɹɪnˈtuɪtɪv//.

/ˌkaʊntəɹɪnˈtuɪtɪv/ adj

adj ·Rare ·Advanced level

Adjective

1
Contrary to intuition or common sense.
"With the students who worked on drafts in class, a number of aspects of lexicography proved challenging and counterintuitive."

Adjective

"It was a counterintuitive event."

From counter- + intuitive. Coined by Noam Chomsky in 1955 as “counter-intuitive”.