Happening by chance, or unexpectedly; taking place not according to the usual course of things; by accident, unintentional.
Occurring sometimes, by chance; occasional.
Being a double point with two distinct tangent planes in 4-dimensional projective space.
Adjusted by one or two semitones, in temporary departure from the key signature.
Pertaining to accident and not essence; thus, inessential; incidental; secondary.
Nonessential to something's inherent nature (especially in Aristotelian thought).
Those fortuitous effects produced by luminous rays falling on certain objects so that some parts stand forth in abnormal brightness and other parts are cast into a deep shadow.
A property which is not essential; a nonessential; anything happening accidentally.
A sharp, flat, or natural, occurring not at the commencement of a piece of music as the signature, but before a particular note.
Part of a text that has a mainly structural purpose, such as spelling, punctuation, or capitalization.
Accidental; as the result of some unforeseen happening or series of events; unexpected; resulting from an event without the foresight, expectation, aid, or design of the person by whose agency it was caused; unintentional.
As the result of some undesigned, unintended, unrelated, natural, or random occurrence; as the unexpected and unforeseen result of formerly unrelated factors.
By chance; unexpectedly; as the result of an unrelated series of events.
Accidentally; unintentionally; without meaning to; as the result of an event not expected, aided, or willingly planned.