1. fortuitous - Adjective
2. fortuitous - Adjective Satellite
Happening by chance; coming or occuring unexpectedly, or without any known cause; chance; as, the fortuitous concourse of atoms.
Happening independently of human will or means of foresight; resulting from unavoidable physical causes.
Source: Webster's dictionaryPainting embraces and contains within itself all the things which nature produces or which results from the fortuitous actions of men... he is but a poor master who makes only a single figure well. Leonardo da Vinci
To what fortuitous occurrence do we not owe every pleasure and convenience of our lives. Oliver Goldsmith
The happy combination of fortuitous circumstances. Walter Scott
Fortuitous circumstances constitute the moulds that shape the majority of human lives, and the hasty impress of an accident is too often regarded as the relentless decree of all ordaining fate. Olympia Brown
It's good to keep in mind that prominence is always a mix of hard work, eloquence in your practice, good timing and fortuitous social relations. Everything can't be personalized. Barbara Kruger
The fortuitous or casual concourse of atoms. Richard Bentley