crossable

Word family

• cross
  verbA2
• crossing
  nounB1
• cross
  adjectiveA2
• uncrossable
  adjectiveC1

Synonym discussion

Sense: adjective/1

All four words describe the ability to move from one side of an obstacle to the other, but they differ in scope and typical contexts. Passable is the most general term — a road blocked by snow can be passable after plowing, and a border crossing is passable with the right documents. Traversable is more formal and suggests moving across a larger area, like a desert or mountain range, rather than a single road. Navigable specifically applies to waterways such as rivers and canals that are deep or wide enough for boats. Crossable is the most direct, everyday word for a physical barrier a person can get across on foot, by vehicle, or with equipment. For example: "The muddy track was barely passable after the rain" (general), "The glacier was traversable only with special equipment" (large area), "The river is navigable for small fishing boats" (waterway), and "The stream was crossable at the shallow bend" (specific barrier).

Etymology

Formed from the verb 'cross' (which came into English from Old Norse kross, itself from Latin crux meaning 'cross-shaped instrument') plus the suffix '-able', which means 'capable of being'. The physical-crossing sense appeared in English by the 17th century; the breeding sense developed much later with the rise of modern genetics.