not appropriate in application; defective; "an infelicitous remark"; "infelicitous phrasing"; "the infelicitous typesetting was due to illegible copy"
marked by or producing unhappiness; "infelicitous circumstances"; "unhappy caravans, straggling afoot through swamps and canebrakes"- American Guide Series
having momentous consequences; of decisive importance; "that fateful meeting of the U.N. when...it declared war on North Korea"- Saturday Rev; "the fatal day of the election finally arrived"
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 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"
not suitable for a particular occasion etc; "noise seems inappropriate at a time of sadness"; "inappropriate shoes for a walk on the beach"; "put inappropriate pressure on them"
not in keeping with what is correct or proper; "completely inappropriate behavior"