Definition of unnaturalize in English:

unnaturalize

Pronunciation /(ˌ)ʌnˈnatʃ(ə)rəlʌɪz/ /(ˌ)ʌnˈnatʃ(ə)r(ə)lʌɪz/

verb

  • To give an unnatural or inauthentic quality to; to represent unnaturally.

Origin

Early 17th century (in an earlier sense). From un- + naturalize, in senses 1 and 3 after unnatural.