Colonialist (noun)

1. A person who advocates or practices colonialism.
2. A person who lived in or was associated with a colonial system or regime.

Origin:

19th century: from colonial + -ist.

Examples:

1. The colonialist policies of European powers led to the exploitation and oppression of native peoples.
2. The colonialist regime was characterized by racial segregation and exploitation of resources.
3. Many colonialists viewed themselves as bringing civilization to the 'uncivilized' peoples they colonized.
4. The anti-colonialist movement sought to end the rule of colonial powers and establish independence.
5. The colonialist era was marked by exploitation of resources, enslavement of native peoples, and cultural hegemony.