confident
Nikkaṅkha (adjective) [Sanskrit niḥśaṅka, nis + kaṅkha, adjective of kaṅkhā, cf. kaṅkhin] not afraid, fearless, not doubting, confident, sure Ja I 58. Cf. nissaṃsaya.
【形】 自信的，無疑的。
(adj, adj, from kaṅkhati) doubtless; confident confident, doubtless Construction: nir + √kaṅkh + a