NAVIGABLE
navigable
(adjective) able to be sailed on or through safely; “navigable waters”; “a navigable channel”
Source: WordNet® 3.1
Etymology
Adjective
navigable (comparative more navigable, superlative most navigable)
(of a body of water) Capable of being navigated; deep enough and wide enough to afford passage to vessels.
(of a boat) Seaworthy; in a navigable state; steerable.
(of a balloon) Steerable, dirigible.
Easy to navigate.
Antonyms
• unnavigable
Source: Wiktionary
Nav"i*ga*ble, a. Etym: [L. navigabilis: cf. F. navigable. See
Navigate.]
Definition: Capable of being navigated; deep enough and wide enough to
afford passage to vessels; as, a navigable river.
Note: By the comon law, a river is considered as navigable only so
far as the tide ebbs and flows in it. This is also the doctrine in
several of the United tates. In other States, the doctrine of thje
civil law prevails, which is, that a navigable river is a river
capable of being navigated, in the common sense of the term. Kent.
Burrill.
– Nav"i*ga*ble*ness, n.
– Nav"i*ga*bly, adv.
Source: Webster’s Unabridged Dictionary 1913 Edition