- expansive - able or tending to expand or characterized by expansion; "Expansive materials"; "the expansive force of fire"
Antonym: unexpansive
- expansive, grand - impressive in scale; "an expansive lifestyle"; "in the grand manner"
Antonym: unimpressive (indirect, via impressive)
- expansive - marked by exaggerated feelings of euphoria and delusions of grandeur
Antonyms: dysphoric, distressed, unhappy (indirect, via euphoric)
- expansive, talkative - friendly and open and willing to talk; "wine made the guest expansive"
Antonyms: uncommunicative, incommunicative (indirect, via communicative)