CASUAL, adjective 1. Falling; happening or coming to pass without design in the person or persons affected, and without being foreseen, or expected; accidental; fortuitous; coming by chance; as, the parties had a casual rencounter. 2. Occasional; coming at certain times, without regularity, in distinction from stated, or regular; as casual expenses. 3. Taking place, or beginning to exist without an efficient intelligent cause, and without design. Atheists assert that the existence of things is casual
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI