independentista

[een-de-pen-den-tees-tah]
noun, plural in·de·pen·den·tis·tas [een-de-pen-den-tees-tahs] /ˌin dɛˌpɛn dɛnˈtis tɑs/. Spanish.
  1. (especially in Latin America) a person who supports or works toward political independence, especially one supporting radical changes in an existing government or from an existing system of government.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018