listen to the pronunciation of fortuitous
Englisch - Englisch
Happening independently of human will
Happening by a lucky chance; lucky or fortunate
Happening by chance; coincidental or accidental
{s} by chance; occurring accidentally
{a} accidental, casual, uncertain, vague
Happening by chance; coming or occuring unexpectedly, or without any known cause; chance; as, the fortuitous concourse of atoms
occurring by happy chance; "profits were enhanced by a fortuitous drop in the cost of raw materials
happening by chance, not necessarily a lucky chance
In general, an accidental occurrence
coincidental or accidental, especially with fortunate consequences
Happening independently of human will or means of foresight; resulting from unavoidable physical causes
having no cause or apparent cause; "a causeless miracle"; "fortuitous encounters--strange accidents of fortune"; "we cannot regard artistic invention as uncaused and unrelated to the times"
occurring by happy chance; "profits were enhanced by a fortuitous drop in the cost of raw materials"
\for-TOO-uh-tuhs; -TYOO-\, adjective: 1 Happening by chance; coming or occurring by accident, or without any known cause 2 Happening by a fortunate or lucky chance 3 Fortunate or lucky
You can describe something as fortuitous if it happens, by chance, to be very successful or pleasant. Their success is the result of a fortuitous combination of circumstances. = lucky. happening by chance, especially in a way that has a good result (fortuitus, from fors )

And so for false fears and all other fortuit inconveniences, mischances, calamities, to resist and prepare ourselves, not to faint is best .

{a} accidentally, casually, by chance
by good fortune; "fortunately the weather was good"
accidentally; by chance
In a fortuitous manner
{i} quality of being accidental, quality of occurring by chance
the quality of happening accidentally and by lucky chance
The quality of being fortuitous