Question

the prefix \anti-\ means opposite or against. all of the following words use this prefix the same way except antigua antigravity antipathy antithesis

Explanation:

The prefix "anti -" means opposite or against. "Antigravity" implies the opposite of gravity, "antipathy" is a feeling against someone or something, and "antithesis" is the opposite of a thesis. However, "Antigua" is a proper noun referring to a place and does not use the "anti -" prefix in the sense of opposition.

Answer:

A. Antigua