1. Not firmly fastened or secured
   "an unlocked room"
   - unbarred, unbolted, unlatched, unsecured

1. Open the lock of
   "unlock the door" 
2. Set free or release 
3. Become unlocked
   "The door unlocked from the inside"

See also: unfastened

Type of: disengage, open, open up, withdraw

Antonym: lock

Encyclopedia: Unlock

• indelicacy
• indelicate
• indemnification
• indemnify
• indemnity
• indemonstrable
• indene
• indent
• indentation
• indention
• indenture
• indentured
• independence
• Independence Day
• Independence Hall
• independency
• independent
• independent agency
• independent clause
• Independent State of Papua New Guinea
• Independent State of Samoa
• independent variable
• independently
• Inderal
• indescribable