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Adjective: expansive  ik'span-siv or ek'span-siv
  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. (psychiatry) 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, expandable, expandible, expansible, impressive, inflatable

Antonym: unexpansive

Encyclopedia: Expansive