ガラッと

が

ら

っ

と

JLPTN1Freq.FrequencyTop 100,000

Meanings

Describes the sound or action of something opening or moving noisily, often with a sliding or banging motion.

Indicates a sudden, drastic change in state, appearance, or situation.

〈物もの〉をガラッと開あけるto fling something open with a clatter
彼かれはドアをガラッと開あけて部屋へやに入はいってきた。
He flung the door open with a clatter and came into the room.
〈事こと〉がガラッと変かわるfor something to change completely and suddenly
彼かれの態たい度どがガラッと変かわった。
His attitude changed completely all of a sudden.
〈場ば所しょ〉の雰ふん囲い気きがガラッと変かわるfor the atmosphere of a place to change dramatically
模も様よう替がえをしたら部屋へやの雰ふん囲い気きがガラッと変かわった。
After redecorating, the room's atmosphere changed completely.

すっかりN4sense 2
すっかり emphasizes a complete change of state without implying any sound, whereas ガラッと often adds a sense of suddenness or noisy abruptness to that change.
ガラリN1
ガラリ and がらっと both describe a sudden, forceful change or clatter, but がらっと is slightly more common in everyday speech while ガラリ can feel a touch more literary or emphatic.

ガラガラN3sense 1
がらがら describes a continuous rattling or clattering sound, while ガラッと describes a single, quick sliding or banging action.

Onomatopoeic word mimicking the sound of something sliding or rattling open, extended to mean a sudden change.