high-risk

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

not financially safe or secure
- a bad investment
- high risk investments
- anything that promises to pay too much can't help being risky
- speculative business enterprises
• Syn:
bad, risky, speculative
• Similar to:
unsound
• Derivationally related forms:
speculativeness (for: speculative), speculate (for: speculative), risk (for: risky), riskiness (for: risky)