incidentally

/ˌɪnsɪˈdɛntli/
adverb
  1. Used to introduce a new topic or additional information that is related but not the main point; by the way.
    • Incidentally, I saw your brother at the store yesterday.
    • Incidentally, did you know that the library is open late tonight?
    • The movie was great. Incidentally, the director is giving a talk next week.
  2. In a way that is secondary or not essential; as a minor detail.
    • She discovered the answer incidentally while reading a different book.
    • The cost was incidentally noted, but not the main concern.
    • The damage to the car was only incidentally mentioned in the report.
What does "incidentally" mean? | whatsthatwordmean | whatsthatwordmean