The word for today is…
intransigent (adjective):
characterized by refusal to compromise or to abandon an often extreme position or attitude
Source : Merriam -Webster
Etymology : English speakers borrowed “intransigent” in the 19th century from Spanish intransigente (“uncompromising”), itself a combination of the familiar prefix in- (“not”) and “transigente” (“willing to compromise”). “Transigente” comes from the Spanish verb transigir (“to compromise”), which in turn comes from Latin transigere (“to come to an agreement”). The French have a similar verb, “transiger,” which also means “to compromise.” You may wonder if the word transigent exists in English, and the answer is “not really.” It has seen occasional use, but it is not well established. There is, however, one other common English word that traces from Latin transigere: transact, meaning “to conduct (business).”
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