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fortuitous +‎ -ly


fortuitously (comparative more fortuitously, superlative most fortuitously)

  1. In a fortuitous manner; in a manner of happening by chance; coincidentally; accidentally.
    • 2017 July 12, Wilhelmina A. Leigh, Sketching Theoretical Biology: Toward a Theoretical Biology, Volume 2[1], volume 2, Routledge, →ISBN, LCCN 2009043982:
      [] For the genetic constitution of the individual may determine only a range of possible behaviour. The actual behaviour of each individual is fortuitously dependent on the total environment, and this latter can include the actual group. For example, the tendency of birds to refrain from mating may prevent the group from exhausting its food supply.
  2. (sometimes proscribed) In a fortuitous manner; in a manner of happening by a lucky chance; luckily; fortunately.

Usage notes[edit]

  • Some argue that fortuitously, which means "by chance", should not be regarded as synonymous with fortunately.


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