Choose the most appropriate ANTONYM of the given word.

FETTER

Unshackle

The most appropriate antonym of the word fetter is unshackle.

• Fetter means "to restrain or restrict someone or something, especially by means of chains or shackles."
• Unshackle means "to free from shackles or restraints."

The other words do not have the same meaning as unshackle.

• Addendum means "something added to a document or text."
• Unusualness means "the state of being unusual or uncommon."
• Complex means "consisting of many different parts or elements; complicated."