a. | 1. | Happening by chance; coming or occuring unexpectedly, or without any known cause; chance; |
2. | (LAw) Happening independently of human will or means of foresight; resulting from unavoidable physical causes. |
Adj. | 1. | fortuitous - 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" |
2. | fortuitous - occurring by happy chance; "profits were enhanced by a fortuitous drop in the cost of raw materials" |