Meaning & usage
かろう expresses conjecture that something is probably true or will probably be so, similar to だろう for i-adjectives in formal writing. It attaches to the stem of an i-adjective by dropping final い and adding かろう, as in 高い to 高かろう, ない to なかろう, and いい to よかろう. It is common with verbs of thinking such as と思う or と予測される, and it cannot be combined with だろう.
Example sentences 8
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明日は雨天ではなかろうかと思う。
I'm afraid it will be rainy tomorrow.
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こんな忠告をしても悪くはなかろう。
It may not be amiss to give this advice.
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十年後にはこの町の人口は少なかろうと予測されている。
It is predicted that this town's population will probably be small in ten years.
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明日の試験は難しかろうと思う。
I think tomorrow's exam will probably be difficult.
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一人では寂しかろうから誘った。
Being alone is probably lonely, so I invited them.
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この店の料理は高かろうと思う。
I think this restaurant's food is probably expensive.
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この方法でよかろうと思う。
I think this method will probably be fine.
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もう心配はなかろうと思う。
I think there is probably nothing to worry about anymore.