ずんと

adverb

much; remarkably; noticeably

Emphasizes a striking degree or extent; often used with verbs of change or state.

• 彼かれは最さい近きんずんと背せが伸のびた。

  He has grown much taller recently.

• この店みせのラーメンは前まえよりずんと美味おいしくなった。

  The ramen at this shop has become noticeably better than before.

adverb

not at all (with negative)

Used with a negative verb to mean 'not at all' or 'not in the least'; the combination ずんと…ない is somewhat emphatic.

• 彼かれの話はなしはずんと面おも白しろくなかった。

  His story was not at all interesting.

adverb

quickly and vigorously; unhesitatingly

Describes doing something with force, speed, or without hesitation; often used with action verbs.

• 彼かれはずんと立たち上あがって反はん論ろんした。

  He stood up quickly and vigorously and argued back.