malaysian
n. countablen. a person from Malaysia or someone who has Malaysian citizenship. You also use this word to talk about the national language of the country.
n. a native or inhabitant of Malaysia, or a person of Malaysian descent. Also refers to the national language, a standardised form of Malay.
My new neighbor is a Malaysian who moved here last year.
The conference brought together a diverse group of professionals, including a Malaysian engineer and a Thai architect.
While the delegation included several different ethnic groups, every Malaysian present shared a common commitment to the nation's vision for economic growth.
From Malaysia + -an.
When referring to the people, it is a countable noun; when referring to the language, it is typically uncountable.