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

See also: optimistic

• run afoul
• run aground
• run along
• run around
• run bases
• run batted in
• run by
• run dry
• run for
• run into
• run low
• run on
• run out
• run over
• run roughshod
• run short
• run-in
• run-of-the-mill
• run-of-the-mine
• run-on sentence
• run-resistant
• run-through
• run-time
• run-time error
• runabout