adv. [f. prec. + -LY2.] In a youthful manner; with the freshness, vigor, or other characteristic of youth; like a young person; in a juvenile style.
1581. Mulcaster, Positions, xxxix. (1888), 209. Let them defende that stoutly, which they haue begone youthfully.
1582. Hester, Secr. Phiorav., III. ii. 6. The face beyng washed therwith, it maketh it very faire, and preserueth it youthfully.
1638. Junius, Paint. Ancients, 195. If anything seemeth to be painted somewhat youthfully, it is esteemed to proceed out of a promising forwardnesse of our naturall inclinations.
1665. Manley, Grotius Low C. Wars, 87. Youthfully impatient of all delay.
1808. Han. More, Cœlebs, ix. Rather youthfully drest.
1875. Browning, Aristoph. Apol., 5289. Now that the cloud has broken, sky laughs blue, Earth blossoms youthfully!