navigable

[nav-i-guh-buh l]
adjective
  1. deep and wide enough to provide passage to ships: a navigable channel.
  2. capable of being steered or guided, as a ship, aircraft, or missile.

Origin of navigable

1520–30; < Latin nāvigābilis, equivalent to nāvigā(re) to sail (see navigate) + -bilis -ble
Related formsnav·i·ga·bil·i·ty, nav·i·ga·ble·ness, nounnav·i·ga·bly, adverbnon·nav·i·ga·bil·i·ty, nounnon·nav·i·ga·ble, adjectivenon·nav·i·ga·ble·ness, nounnon·nav·i·ga·bly, adverbun·nav·i·ga·bil·i·ty, nounun·nav·i·ga·ble, adjectiveun·nav·i·ga·ble·ness, nounun·nav·i·ga·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for unnavigable

Historical Examples of unnavigable


British Dictionary definitions for unnavigable

navigable

adjective
  1. wide, deep, or safe enough to be sailed on or througha navigable channel
  2. capable of being steered or controlleda navigable raft
Derived Formsnavigability or navigableness, nounnavigably, adverb
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 unnavigable

navigable

adj.

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