|temə|ra(a)rēəs, -|rer- adjective
Etymology: Latin temerarius, from temere by chance, rashly + -arius -ary — more at temerity
1. : marked by temerity : rashly or presumptuously daring : reckless , brash
how often we have been cowardly and hung back, or temerarious and rushed unwisely in — R.L.Stevenson
2. archaic : happening by chance : fortuitous
principles … not merely casual and temerarious — James Harris
Synonyms: see adventurous