UNLOCKED
unbarred, unbolted, unlatched, unlocked, unsecured
(adjective) not firmly fastened or secured; “an unbarred door”; “went through the unlatched gate into the street”; “an unlocked room”
Source: WordNet® 3.1
Adjective
unlocked (not comparable)
Not secured or protected by a lock.
(mobile telephony, of a phone) Not bound to any particular carrier.
Antonym: locked
Verb
unlocked
simple past tense and past participle of unlock
Source: Wiktionary
UNLOCK
Un*lock", v. t. Etym: [Cf. AS. unl. See 1st Un-, and Lock, v. t.]
1. To unfasten, as what is locked; as, to unlock a door or a chest.
2. To open, in general; to lay open; to undo.
Unlock your springs, and open all your shades. Pope.
[Lord] unlock the spell of sin. J. H. Newman.
Source: Webster’s Unabridged Dictionary 1913 Edition