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[in-si-den-tl-ee or for 1, -dent-lee] /ˌɪn sɪˈdɛn tl i or for 1, -ˈdɛnt li/
apart or aside from the main subject of attention, discussion, etc.; by the way; parenthetically.
in an incidental manner.
Origin of incidentally
1655-65; incidental + -ly Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for incidentally
Contemporary Examples
Historical Examples
  • It was a Kansas City newspaper reporter who incidentally brought home to me the fact that I was no longer very young.

    Memoirs of an American Prima Donna Clara Louise Kellogg
  • incidentally it is worth noting that there were about 120 lbs.

    Concrete Construction Halbert P. Gillette
  • I am soaking the red pepper out of my eyes, and incidentally bathing my bruises at the same time.

    Frank Merriwell's Chums Burt L. Standish
  • incidentally the tree may minister to the needs and comfort and pleasure of man.

    The Gate of Appreciation Carleton Noyes
  • incidentally it may be added that they were married, as planned, the following summer.

    With Links of Steel Nicholas Carter
British Dictionary definitions for incidentally


as a subordinate or chance occurrence
(sentence modifier) by the way
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for incidentally

1520s, "by the way, casually;" see incidental + -ly (2). Sense of "as a new but related point" attested by 1925.

Online Etymology Dictionary, © 2010 Douglas Harper
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