For*tu"i*tous (?), a. [L. fortuitus; akin to forte, adv., by chance, prop. abl. of fors, fortis, chance. See Fortune.]
Happening by chance; coming or occuring unexpectedly, or without any known cause; chance; as, the fortuitous concourse of atoms.
It was from causes seemingly fortuitous . . . that all the mighty effects of the Reformation flowed.
So as to throw a glancing and fortuitous light upon the whole.
Happening independently of human will or means of foresight; resulting from unavoidable physical causes.
Syn. -- Accidental; casual; contingent; incidental. See Accidental.
-- For*tu"i*tous*ly, adv. -- For*tu"i*tous*ness, n.
© Webster 1913.