1. unable to sink or be sunk
Usage: often used in nautical contexts

Examples

• The ship was advertised as nonsinkable due to its advanced hull design.
• Engineers developed a nonsinkable life raft for emergency situations.
• The Titanic was famously called nonsinkable before its tragic maiden voyage.
• Modern safety regulations require nonsinkable compartments in passenger vessels.
• The rescue boat’s nonsinkable construction saved many lives during the storm.
• Scientists are working on nonsinkable materials for marine applications.