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justifiable + noun
justifiable 常作定语修饰名词，表示某行为有合理依据。
The court accepted her claim that it was a justifiable homicide.
法院接受了她的说法，认为这是正当杀人。
有理由的；可证明为正当的；情有可原的
先理解核心含义，再看它在真实句子里的用法。
有理由的；可证明为正当的；情有可原的
capable of being justified; able to be shown to be reasonable or right
The court accepted her claim that it was a justifiable homicide.
法院接受了她的说法，认为这是正当杀人。
可证明为正当的；有理的。
That can be justified.
可证明为正当的
capable of being justified
可辩护的:指故意但不应受责备的违法行为,如因其积极后果大于消极后果；区别于描述非自愿违法行为的“可原谅的”。
Describing an illegal and intentional act that is nevertheless not blameworthy, for example because its positive consequences outweighed the bad. Distinguished from excusable, describing an involuntary illegal act.
The extra cost was justifiable because the new machine saved us hours of work.
额外花费是合理的，因为新机器为我们节省了大量工作时间。
She felt her anger was justifiable after the way he treated her.
他那样对待她之后，她觉得自己的生气是有道理的。
Although the delay was annoying, it was justifiable given the heavy rain.
虽然延误令人恼火，但考虑到下着大雨，这是情有可原的。
justifiable 常作定语修饰名词，表示某行为有合理依据。
The court accepted her claim that it was a justifiable homicide.
法院接受了她的说法，认为这是正当杀人。
be justifiable 作表语，主语常为决策、行为或观点。
His decision is justifiable when you consider the circumstances.
考虑到当时的情况，他的决定是有道理的。
该句型用 it 作形式主语，真正的主语是不定式短语。
It is justifiable to use force in self-defence.
为自卫而使用武力是有理可据的。
Not this
His decision is justify.
Use this
His decision is justifiable.
justify 是动词，不能放在 be 动词后作表语；表示“可证明为正当的”应使用形容词 justifiable。
Not this
He is justifiable to get angry.
Use this
He is justified in getting angry.
justifiable 通常修饰行为、决定等，表示“可证明为正当的”；表示“某人有理由做某事”要用固定搭配 be justified in doing sth.，而不是 be justifiable to do。
Not this
They justifiable left the meeting early.
Use this
They justifiably left the meeting early.
justifiable 是形容词，不能修饰动词 left；修饰动词或整个句子要用副词 justifiably。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
正当杀人（如自卫）
The court ruled it a justifiable homicide.
法院裁定这是正当杀人。
正当的自豪；合情合理的自豪
She takes justifiable pride in her students' success.
她对学生们的成功抱有正当的自豪。
有理由的愤怒；正当的愤怒
His justifiable anger at the injustice was evident.
他对不公的愤怒是有道理的，这一点显而易见。
正当理由
There is no justifiable reason for such rudeness.
如此无礼毫无正当理由。
合理的担忧
There is justifiable concern about the safety of the old bridge.
人们对这座旧桥的安全性有合理的担忧。
完全有道理的；完全正当的
Her decision was perfectly justifiable.
她的决定完全有道理。
Use justifiable naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记住开头 just（公正）：能证明行为“公正”的，就是 justifiable（有理由的、情有可原的）。
语域：neutral 常见场景：法律与道德讨论、一般书面或口头说理 该词比较常见于正式或书面语境，尤其在法律、道德、管理等讨论中；日常说话时也可用，但语气偏正式，通常表示某行为或决定有充分理由而可辩护。
Genuine rhymes: reliable, viable, liable, and deniable all have the stressed vowel /aɪ/ followed by /əbəl/, matching justifiable's final /ˌfaɪəbəl/. Be careful with lookalikes: sociable /ˈsoʊʃəbəl/ and appreciable /əˈpriːʃəbəl/ are spelled with -iable but pronounced with /ʃ/ and a different vowel, not /aɪ/. Also note that justifiable's own relatives justify /ˈdʒʌstəfaɪ/ and justified /ˈdʒʌstəfaɪd/ look similar but do not share this -iable ending.
Dictionary facts from ECDICT, WIKTIONARY.