How to say "dramatically" in Japanese

• がったり
  adverb (with と)A less common mimetic word for 'dramatically' when a sudden fall or collapse is meant — something dropping or giving way all at once. For 'dramatically' meaning 'greatly', it is seldom the word you want.
• ガラッと
  adverbFits 'dramatically' when something changes completely and abruptly — the atmosphere of a room or a person's attitude shifting at once. A less common mimetic word; it stresses the completeness of the change, not degree.

Both are less common mimetic words: 「がったり」 suits 'dramatically' describing a sudden fall or collapse, while 「ガラッと」 suits 'dramatically' describing a complete, abrupt change; choose by the kind of change involved.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• がったりsuddenly (esp. falling)
• ガラッと(changing) completely
• がらり(changing) completely