Counterintuitively

Part of speech: adverb

Definitions

1. In a manner that goes against common sense and expectations, leading to surprising or paradoxical results
2. In a fashion that opposes intuitive understanding, often causing unexpected conclusions that challenge established beliefs
3. Acting or occurring in a manner that defies usual expectations or common sense

Etymology: "Counterintuitively" is simply "counterintuitive" with the adverb ending "-ly" added, and the adjective is built from "counter-" and "intuitive." The "-ly" ending is one of English's oldest and most productive suffixes, descending from an Old English form "-līċe" that was itself attached to adjectives to make words describing the manner of an action. So the adverb adds only a manner marker to a word that already meant "running against intuition." The pieces of the base word are worth separating. "Counter-" comes from Latin "contra," meaning "against" or "opposite," which is why it appears in words like "counterpart" and "counterweight." "Intuitive" descends from Latin "intuiri," to look at or contemplate, and points to knowledge grasped directly rather than through reasoning. Put together, "counterintuitive" describes something that cuts against that immediate sense of how things should work, and the adverb describes doing or happening in that way.