"characterized by randomness, chance, accidental," 1670s, from noun meaning "a chance, accident" (1570s), from hap (n.) "chance, luck" + hazard (n.) "risk, danger, peril." Related: Haphazardly.
a haphazard plan of action
a most haphazard system of record keeping
the Prime Minister was wearing a grey suit and a white shirt with a soft collar, but his neck had become thinner and the collar stood away from it as if it had been bought haphazard
Hansen's disease
hansom
Hanukkah
hap
hapax legomenon
haphazard
hapless
haplo-
haplography
haploid
haplology