Entry 1 sense Webster, 1913 Adventurously · Ad·ven·tur·ous·ly · IPA /ˌædˈvɛn.t͡ʃɚ.əsˌli/ 01 adv. In an adventurous manner; venturesomely; boldly; daringly. 1. In an adventurous manner; venturesomely; boldly; daringly.