- deep and wide enough to provide passage to ships: a navigable channel.
- capable of being steered or guided, as a ship, aircraft, or missile.
Origin of navigable
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for non-navigable
First, the granting of water powers forever, either on non-navigable or navigable streams, must absolutely stop.
Water power on non-navigable streams usually results from dropping a little water a long way.
- wide, deep, or safe enough to be sailed on or througha navigable channel
- capable of being steered or controlleda navigable raft
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for non-navigable
mid-15c., from Old French navigable (14c.) or directly from Latin navigabilis, from navigat-, past participle stem of navigare (see navigation). Related: Navigability.
Online Etymology Dictionary, © 2010 Douglas Harper