wiseacre /wīzˈā-kər/

1. Someone who unduly assumes an air of superior wisdom
2. A wise guy
3. A simpleton quite unconscious of being one

• straight angle
• straight angles
• straight-arm
• straight arrow
• straight arrows
• straight as a die
• straight away
• straightaway
• straight chain
• straight chains
• straight-cut
• straighted
• straightedge
• straightedges
• straighten
• straightened
• straightener
• straighteners
• straightening
• straighten out
• straightens
• straighter
• straightest
• straight-faced
• straight fight