Not deliberate (13)
(Other definitions for unintentional that I've seen before include "Without much thought" , "Inadvertent" , "Accidental" , "Talent in union (anag) - not planned" , "Not done on purpose" .)
(Other definitions for hasty that I've seen before include "Rushed; rash" , "Impulsive" , "Speedy" , "Rashly quick" , "Impetuous - quick-tempered" .)