外界 (wài jiè) means “the outside world; external”. It is an HSK 6 Chinese word in the HSK 3.0 vocabulary.
Practice each character:
他不太关心外界的看法。
Tā bù tài guānxīn wàijiè de kànfǎ.
He doesn't care much about the outside world's views.
Updated: 2026-05-27