noun
1.
Synonyms: temerity , assurance, audacity, brashness, hardiness, nerve
Related Word: boldness, intrepidity; brazenness, cockiness; fortitude, grit, guts, pluck, sand
Antonyms: cowardice; timidity
2.
Synonyms: insolence , boldness, disrespect, impertinence, impudence, insolency, insolentness
3.
Synonyms: energy 2, birr, go, ||moxie, pep, potency, tuck, vigor