いっそう の訳語→ add er even inevitably more
かなり の訳語→ again almost amazingly appreciably considerable considerably extremely fairly goddamned good heavily how lot much nearly plenty positively pretty quite rather serious some somewhat substantial very widely
しだいに の訳語→ eventually gradually grow increased
だんだん の訳語→ constantly finally steadily
どんどん の訳語→ aggressively all dramatically eagerly fair fast keep quickly rapidly
にわかに の訳語→ abruptly new sudden suddenly
みるみるうちに の訳語→ immediately rapid