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1. Giving or marked by complete attention to
   "that engrossed look of rapt delight"; "rapt with wonder"; "that absorbed look of rapt delight";
   - captive, absorbed, engrossed, enwrapped, intent, wrapped
    
2. Feeling great rapture or delight
   - ecstatic, enraptured, rapturous, rhapsodic, enrapt, rhapsodical

Sounds like: rapper, wr, rapt, wrapped

See also: attentive, joyous

Encyclopedia: Rapt