Sketchy
Else clues• Ambiguous
• Amorphous
• Clear as mud
• Foggy
• Fuzzy
• Hard to pin down
• Hazy
• Ill-defined
• Imprecise
• Indistinct
• Inexplicit
• Lacking details
• Nebulous
• Nonspecific
• Not clear
• Not clearly expressed
• Not exactly lucid
• Not explicit enough
• Not fully formed
• Not very specific
• Out of focus
• Poorly formed
• Shadowy
• Uncertain
• Unclear
• Undefined