figurative. Cf. by-, comb._form 3 c, d, 4, 5: often coupled with another epithet, as by and sinister… Away from the main purpose, occurring ‘by the…

Subject to, depending on, or produced by chance; accidental, fortuituous.

Fortuitous.

Fortuitous, accidental.

Pertaining to fortune or chance, fortuitous.

Having no antecedent cause. fortuitous.

Occurring or coming by chance; adventitious, fortuitous, accidental. Obsolete.

That may occur from time to time as a result of chance; characterized by or relating to chance circumstances or to a chance occasion; occasional.

Pertaining to fortune or chance, fortuitous.

That happens or presents itself by chance; fortuitous; chance. Obsolete. rare.

Happening by chance, subject to chance, casual, accidental, fortuitous.

Happening or arising casually or incidentally; casual, incidental; accidental. Obsolete.

Occurring or characterized by chance; occasional. Cf. accidental, adj. 6 7.

Casually or unexpectedly arising; not specially provided for. archaic.

? Stray, casual.

Happening or coming by chance; not fixed by necessity or fate; accidental, fortuitous.

Originally and chiefly Scottish. Casual, chance, occasional. Now rare.

Occurring or liable to occur in fortuitous or subordinate conjunction with something else of which it forms no essential part; casual.

Of an event or circumstance. Occurring by chance; depending on chance. Obsolete.

= sporadic, adj.

Acting or happening at random; fortuitous, casual, haphazard. Obsolete.

Of natural processes: Occurring without apparent external cause; having a self-contained cause or origin.

Casual, incidental.

That occurs or is by chance; happening to be such; casual, incidental.

Occasional, odd, chance.

That happens or is produced by fortune or chance; accidental, casual. fortuitous concourse of atoms: see concourse, n. 3a.fortuitous event (Law)…

Of single persons or things: Accidental; isolated.

attributive (from sense 1): That is a windfall; blown down by the wind: = compounds 2. Also figurative (from sense 2): Casual, ‘chance’. Also…

That has come about by chance; accidental.

Purposeless; fortuitous, random.

Characterized by or resulting from chance or luck; random, haphazard.

Characterized by or resulting from chance or luck; haphazard, random; coincidental.