undaunting

verb (used with object)

1. to overcome with fear; intimidate: to daunt one’s adversaries.
2. to lessen the courage of; dishearten: Don’t be daunted by the amount of work still to be done.

verb (tr; often passive)

1. to intimidate
2. to dishearten

adj.1786, “not quailing” [OED], from un- (1) “not” + present participle of daunt. v.c.1300, “to vanquish,” from Old French danter, variant of donter (12c., Modern French dompter) “be afraid of, fear, doubt; control, restrain,” from Latin domitare, frequentative of domare “to tame” (see tame (v.)). Sense of “to intimidate” is from late 15c. Related: Daunted; daunting.