Indonesian

UK: /ˌɪndəʊˈniːziən/

US: /ˌɪndəˈniʒən, -ʃən/

US: (in′də nē′zhən, -shən, -zē ən, -dō-)

WordReference Random House Learner's Dictionary of American English © 2026

In•do•ne•sian /ˌɪndəˈniʒən, -ʃən/   n. 

1. [countable] a person born or living in Indonesia.
2. [uncountable] the language spoken by many of the people in Indonesia.

adj. 
3. of or relating to Indonesia.
4. of or relating to the language spoken by many of the people in Indonesia.

WordReference Random House Unabridged Dictionary of American English © 2026

In•do•ne•sian  (in′də nē′zhən, -shən, -zē ən, -dō-), n. 

1. Language Varieties a member of the ethnic group consisting of the natives of Indonesia, the Filipinos, and the Malays of Malaysia.
2. Language Varieties a member of a population supposed to have been resident in the Malay Archipelago before the Malays, and believed to constitute one element of the present mixed population of Malaysia and perhaps Polynesia.
3. Language Varieties Official name, Bahasa Indonesia. an Indonesian language that is based on the form of Malay spoken in Java and has the status of official language in the Republic of Indonesia.
4. Language Varieties the westernmost branch of the Austronesian family of languages, including Malay, Indonesian, Tagalog, and Malagasy.

adj. 

5. Language Varieties, Place Names of or pertaining to the Malay Archipelago.
6. Language Varieties of or pertaining to Indonesia, the Indonesians, or their languages.

• Indonesi(a) + -an 1840–50

Collins Concise English Dictionary © HarperCollins Publishers::

Indonesian / ˌɪndəʊˈniːʒən ˌɪndəʊˈniːzɪən/ adjective

1. of or relating to Indonesia, its people, or their language

noun

1. a native or inhabitant of Indonesia