Not capable of being locked.

Capable of being unlocked.

(video games) An initially hidden feature that is made available to reward the player for some achievement.

plural of unlockable

(transitive) To undo or open a lock or something locked by, for example, turning a key, or selecting a combination. / (transitive) To obtain access to something.

(figuratively); The act of unlocking something.

Not secured or protected by a lock. / (mobile telephony, of a phone) Not bound to any particular carrier.

simple past tense and past participle of unlock

Third-person singular simple present indicative form of unlock

plural of unlock