Related Clues:

• Second (not leader), second-rate
• Second, not top, so uncertain
• Instant — not opening but open to doubt
• Questionable - uncertain
• Dodgy
• Like traditional movies, for short
• Like a plane, for short
• Not certain at all
• Sheriff yodelling is a bit dubious
• Inconclusive
• Not quite decided
• Highly speculative
• Having no depth briefly,
• Less than certain
• Having no depth, briefly