tóu​jī HSK7

congenial

投机 (投機) tóu​jī
congenial adjective
having similar interests, tastes, or opinions; agreeable

Because of their similar personalities, the two of them hit it off well.

speculate expression
to engage in risky business transactions for quick profit; to be opportunistic

These merchants attempted to make huge profits through speculation and profiteering.

Frequency

Movie subtitles
1.37 per million appears in 1% of films
Written text
14.3 per million

Details

HSK 2.0
Level 6
HSK 3.0
Level 7

Sources

Definitions
CC-CEDICT