in ‧ di ‧ vid ‧ u ‧ al ‧ is ‧ m AC /ˌɪndəˈvɪdʒuəlɪz ə m, ˌɪndɪˈvɪdʒuəlɪz ə m/ BrE AmE noun [uncountable]
1 . the belief that the rights and freedom of individual people are the most important rights in a society:
Capitalism encourages competition and individualism.
2 . the behaviour or attitude of someone who does things in their own way without being influenced by other people