From the following words, the one that takes the prefix un- to form a new word with opp...

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William Shakespeare (23 April 1564 – 23 April 1616), who was an English playwright, poet and actor, is regarded as the greatest writer in the English language and one of the most famous in the history of humanity. He was very fond of creating words, of which Arch-villain is an example. He also created words by attaching prefixes or suffixes to existing phrases. In Romeo and Juliet, Shakespeare popped ‘un’ in front of ‘comfortable’ to create a word that’s now used every day by people around the world.

(https://www.shakespeare.org.uk/explore. Adaptado)