1. Of uncertain outcome; especially fraught with risk
   - chancy, dicey, dodgy [Brit]

See also: dangerous, unsafe

• blue star
• blue story
• blue succory
• blue thistle
• blue tit
• blue toadflax
• blue tulip
• blue vitriol
• blue wall
• blue wall of silence
• blue walleye
• blue whale
• blue-belly
• blue-black
• blue-blind
• blue-blindness
• blue-blooded
• blue-chip stock
• blue-collar
• blue-eyed
• blue-eyed African daisy
• blue-eyed boy
• blue-eyed grass
• blue-eyed Mary
• blue-flowered