WordWeb Online

1. Able or tending to expand or characterized by expansion
   "Expansive materials"; "the expansive force of fire"
    
2. Of behaviour that is impressive and ambitious in scale or scope
   "an expansive lifestyle"
   - grand, heroic
    
3. Marked by exaggerated feelings of euphoria and delusions of grandeur
    
4. Friendly and open and willing to talk
   "wine made the guest expansive"
   - talkative

See also: blow-up [], cavernous, communicative, communicatory, distensible, erectile, euphoric, expand, expandable, expandible, expansible, expansively, expansiveness, expansivity, impressive, inflatable

Antonym: unexpansive

Encyclopedia: Expansive