improbability

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the quality of being improbable
- impossibility should never be confused with improbability
- the improbability of such rare coincidences
• Syn:
improbableness
• Ant:
probability
• Derivationally related forms:
improbable (for: improbableness), improbable
• Hypernyms:
uncertainty, uncertainness, precariousness
• Hyponyms:
unlikelihood, unlikeliness