1. Pleasantly (even unrealistically) optimistic
   - cheerful, upbeat

See also: optimistic

• Abstract Expressionism
• abstract thought
• abstracted
• abstractedly
• abstractedness
• abstracter
• abstraction
• abstractionism
• abstractionist
• abstractive
• abstractly
• abstractness
• abstractor
• abstruse
• abstrusely
• abstruseness
• abstrusity
• absurd
• absurdity
• absurdly
• absurdness
• Abu Ali al-Husain ibn Abdallah ibn Sina
• Abu Dhabi
• Abu Hafs al-Masri Brigades
• Abu Nidal Organisation