1. (Abstract Noun) the extreme ability to disregard fear without rational

Assamese: দুঃসাহস, মৰসাহ, স্পৰ্দ্ধা

Different POS:

a. Verb-Trans.: dare, venture, দুঃসাহস কৰ্, মৰসাহ কৰ্, সাহ কৰ্...

Lower Magnitude:

b. Abstract Noun-Neuter: boldness, courage, অকুতোভয়তা, খামি, তাগজ...