EXPANSIVELY
ebulliently, exuberantly, expansively
(adverb) in an ebullient manner; “Khrushchev ebulliently promised to supply rockets for the protection of Cuba against American aggression”
expansively
(adverb) in an impressively expansive manner; “she managed to live rather expansively on her modest income”
Source: WordNet® 3.1
Etymology
Adverb
expansively (comparative more expansively, superlative most expansively)
In an expansive manner
Source: Wiktionary
EXPANSIVE
Ex*pan"sive, a. Etym: [Cf. F. expansif.]
Definition: Having a capacity or tendency to expand or dilate; diffusive;
of much expanse; wide-extending; as, the expansive force of heat; the
expansive quality of air.
A more expansive and generous compassion. Eustace.
His forehead was broad and expansive. Prescott.
– Ex*pan"sive*ly, adv. -Ex*pan"sive*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition