ことに

ことに
adverb
especially, particularly; ironically
1. especially, particularly
Emphasizes that something is true to a greater degree than usual.
ことに(ふゆ)(さむ)い。
It's especially cold in winter.
2. ironically, as luck would have it
Introduces an ironic or unexpected situation (often as 〜なことに).
Ironically, the doctor fell ill.
残念(ざんねん)なことに、(あめ)()()した。
Unfortunately, it started to rain.
(さいわ)いなことに、(だれ)怪我(けが)しなかった
Fortunately, no one was injured.

ことに has two distinct uses as an adverb.

USE 1: ESPECIALLY

  • Emphasizes degree
  • Similar to (とく)に, (こと)
  • ことに〜だ/ことに〜が〜

USE 2: 〜なことに (IRONICALLY/FORTUNATELY)

  • Introduces situation with emotional evaluation
  • Always follows na-adjective or の

COMMON PATTERNS:

  • 皮肉(ひにく)なことに (ironically)
  • 残念(ざんねん)なことに (unfortunately)
  • (さいわ)いなことに (fortunately)
  • (おどろ)いたことに (surprisingly)
  • (こま)ったことに (unfortunately, problematically)

NOTE: When written as (こと)に, it typically means "especially" (sense 1).