a musical notation that makes a note sharp or flat or natural although that is not part of the key signature
without intention (especially resulting from heedless action); "with an inadvertent gesture she swept the vase off the table"; "accidental poisoning"; "an accidental shooting"
associated by chance and not an integral part; "poetry is something to which words are the accidental, not by any means the essential form"- Frederick W. Robertson; "they had to decide whether his misconduct was adventitious or the result of a flaw in his character"
occurring or appearing or singled out by chance; "their accidental meeting led to a renewal of their friendship"; "seek help from casual passers-by"; "a casual meeting"; "a chance occurrence"
without preparation; not prepared for; "unprepared remarks"; "the shock was unprepared"; "our treaty makers approached their immensely difficult problems unprepared"- R.E.Danielson
without careful prior deliberation or counsel; "ill-advised efforts"; "it would be ill-advised to accept the offer"; "took the unadvised measure of going public with the accusations"
operating with minimal human intervention; independent of external control; "automatic transmission"; "a budget deficit that caused automatic spending cuts"
like the unthinking functioning of a machine; "an automatic `thank you'"; "machinelike efficiency"
without volition or conscious control; "the automatic shrinking of the pupils of the eye in strong light"; "a reflex knee jerk"; "sneezing is reflexive"
casually thoughtless or inconsiderate; "an offhand manner"; "she treated most men with offhand contempt"
in a casually inconsiderate manner; "replied offhand, his mind a million miles away"; "she threw him over offhandedly without even a Dear-John letter"
without previous thought or preparation; "couldn't give the figures offhand"; "we decided offhand to go to Canada"; "she had made these remarks offhandedly"