The term 'not locked' can be represented by three different crossword solutions: OPEN (4 letters), BALD (4 letters), and AJAR (4 letters). The word OPEN is used to describe something that is not closed or sealed, such as a door or window. BALD is an adjective used to describe something that has no hair, fur, or feathers. Finally, AJAR is an adverb used to describe something that is slightly OPEN, such as a door or window.