a. Obs. [f. L. alacri-s brisk, lively + -OUS. Cf. hilari-ous.] Brisk, lively, active.
1602. Warner, Albions Eng., Epit. (1612), 376. His alacrious Intertainments, and vpright Gouernment.
1640. Jackson, Wks., I. Pref. Alacrious endeavours to redeem time.
a. 1660. Hammond, Wks., IV. 550 (R.). Twere well if we were a little more alacrious.
[Not in Johnson, but in mod. Dicts.]