hapchance UK /ˈhapˌtʃɑːns/US /ˈhæpˌtʃæn(t)s/noun 2adjective 1adverb 1forms 1 noun2 •(literary, rare) Chance, luck, fortune; the random or unplanned quality of an event. (frequently in by hapchance)Under the cover of darkness queer things happen in strange corners and some of them come to light. Here are two incidents that by hapchance are revealed[…] — 1913 •(literary, rare) A chance occurrence; an accident, a coincidence.[…]and yet content to dote upon a line, or the hapchance of a sounding word. — 1953 adjective1 •(literary, rare) Happening or met with by chance; chance, casual, random, haphazard.He was close upon the farther end when—upon a hapchance impulse—he glanced over the nearest guard-rail, down at the bed of the creek. — 1907 adverb1 •(literary, rare) By chance; at random; haphazardly.As it happened, the thing worked with disconcerting abruptness as his untrained fingers fell hapchance on the spring. — 1908 formshapchances