Related Clues:

• Leaving something to be desired
• Bored exclamation
• Worth a C, perhaps
• Just passing
• Uninspired
• Not that great
• Only so-so
• Sort of tame
• "Okay, I guess"
• Only fair
• Okay but not great
• ''Comme ci, comme ca''
• 'I've been better'
• Like a grade of C
• Eliciting a shrug, perhaps