Related Clues:

• Worthless
• Pointless
• Fruitless
• In vain
• Futile
• Unhelpful
• A waste of time
• One of us turns out to be unemployable
• Regularly goofier, without common sense?
• Regarding common sense, egghead's a waste of space
• Vain fellow with sense to wear jacket of organdie
• Worthless old 13 — no parts?