Related Clues:

• Careful
• Disbelieving
• Keeping the eyes and ears open
• Gun-shy
• Uneasy
• None too trusting
• On the lookout
• Not too sure
• Having one's doubts
• Suspicious and alert
• A little suspicious
• Untrusting
• Suspi-cious
• Suspicious (of)
• Cautious, wary