Akademik

briskness
noun
liveliness and eagerness
-

he accepted with alacrity

-

the smartness of the pace soon exhausted him

Syn: ↑alacrity, ↑smartness
Derivationally related forms: ↑smart (for: ↑smartness), ↑brisk, ↑alacritous (for: ↑alacrity)
Hypernyms: ↑liveliness, ↑life, ↑spirit, ↑sprightliness

Useful english dictionary. 2012.