fearless
Nibbhaya (adjective) [nis + bhaya] free from fear or danger, fearless, unafraid Ja I 274; III 80; V 287; Vism 512.
【形】 大膽的，勇敢的。
(adj, adj, from bhaya) free from fear; fearless; unafraid free from fear; fearless; unafraid Construction: nir + √bhī > bhay + *a