How to say "amazingly" in Japanese

• 驚くほどおどろくほどCommon
  expression, adverbCovers 'amazingly' as a degree word: something has a quality or happens to a surprising, remarkable extent. Typical context: emphasizing how great a difference, change or ability is.
• 驚いたことにおどろいたことに
  expression, adverbCovers 'amazingly' standing alone as a comment on a whole statement, expressing the speaker's surprise; it can also introduce something alarming. Less common than 驚くほど.

Use 「驚くほど」 when 'amazingly' expresses the degree or extent of something; use 「驚いたことに」 when it stands alone as a comment that a whole statement is surprising or alarming.

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

• 驚くほどおどろくほどto a surprising degree
• 驚いたことにおどろいたことにsurprisingly