期きせずして

adverb

unexpectedly; by chance; without intending to

Used when something happens without prior planning or expectation, often with a nuance of 'it just so happened that...'. Slightly formal/literary.

• 期きせずして同おなじ電でん車しゃに乗のり合あわせた。

  We happened to get on the same train by chance.

• 期きせずして二人ふたりの意い見けんが一いっ致ちした。

  Unexpectedly, their opinions matched.