Answer:
Anti-federalists
Explanation:
"Federal" in "anti-federalist" refers to a strong central-government. Anti-federalists were "anti" or against a strong central government because they were concerned that weakening state power and giving a single political ruler all the power could result in a tyrannical government like that of Great Britain's. Because they had just separated themselves from an oppressive tyrannical ruler, they did not want the constitution to establish a similar government.