1. making the most creaking sounds; most prone to producing harsh grating or squeaking noises
Usage: superlative form of creaky
2. most worn-out, rickety, or in poor condition
Usage: informal; superlative form of creaky

Examples

• The creakiest floorboard in the house was right outside my bedroom door.
• Of all the old chairs, this one is the creakiest when you sit down.
• The creakiest gate in the neighborhood always announced visitors.
• She chose the creakiest stairs to sneak upstairs, making noise with every step.
• The creakiest door in the haunted house added to the spooky atmosphere.
• His creakiest joints bothered him most on cold mornings.