unpredictable

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

1. not capable of being foretold (Freq. 2)
• Ant:
predictable
• Similar to:
aleatory, capricious, freakish, episodic, occasional, unforeseeable
• See Also:
uncertain
• Derivationally related forms:
unpredictability
2. unknown in advance
- an unpredictable (or indeterminable) future
• Similar to:
indeterminable, undeterminable
• Derivationally related forms:
unpredictability
3. not occurring at expected times
• Syn:
irregular
• Similar to:
sporadic
• Derivationally related forms:
irregularity (for: irregular)