1. 未必存在：imprinter 印码器 | improbability 未必存在 | improper character 非法字符
2. 不大可能的事物：imprisonment 关押 | improbability 不大可能的事物 | improbable 不可能的
3. 不可能[廖：ideal speaker 理想的說話人[廖308] | improbability 不可能[廖416] | inappropriateness 不合適[廖408]
4. 未必有之事：imprisonmentimprisoned 坐牢 | improbability 未必有之事 | improbability 不大可能的事物
noun
1. the quality of being improbable
e.g. impossibility should never be confused with improbability
the improbability of such rare coincidences
Synonym: improbableness