An onomatopoeic adverb indicating a dizzy or lightheaded sensation, often used as 'くらりと'.
急に立ち上がったらくらりとして座り込んだ。
When I stood up suddenly I felt dizzy and had to sit down.
彼は暑さでくらりとしたがすぐに水を飲んで回復した。
He felt lightheaded from the heat but recovered quickly after drinking water.
クラリとした音の表現は漫画や小説でよく見られる。
The katakana form 'クラリ' is often seen in manga and novels to represent a dizzy feeling.