Related Clues:

• Questionable
• Suspicious
• Unconvincing
• Unbelievable
• Not quite right
• Suspect
• Arousing suspicion
• Hard to swallow
• Murky
• Implausible
• Dubious
• Suspicious in piscine way
• Suspicious, shady
• Dodgy, suspicious
• If one turns not forward, that's suspect in the net at first