Similar words
terco
obstinado is slightly more about persisting despite reason; terco is more general stubbornness.
Similar in other languages
German
verstockt
verstockt is the German word for the same thing — both mean "obstinate, stubborn."
German
verbissen
Close — dogged, grim relates to stubborn (obstinado).
Practice
1 What does obstinado mean?
stubborn
2 Fill the gap: Es ___ y no cede.
Full sentence: Es obstinado y no cede. (He is stubborn and won't yield.)
3 Which fingerprint chart matches obstinado?
obstinado: neutral register, academic frequency, general domain, neutral connotation.