Thesaurus

navigable

adjective

Definition of NAVIGABLE

capable of being traveled on <this map shows which rivers are navigable and which aren't>
Antonyms impassable (also impassible), unnegotiable, unpassable

March 29, 2015
discomfit Hear it
To thwart or disconcert
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears