Adding the suffix ous
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dangerous |
Chlorine gas is very dangerous.
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poisonous |
Not all snake bites are poisonous.
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mountainous |
A large part of Austria is mountainous.
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joyous |
Their wedding was a truly joyous occasion.
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synonymous |
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hazardous |
*
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riotous |
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perilous |
Something that is perilous is very dangerous.
*
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momentous |
Their wedding will be a momentous occasion.
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scandalous |
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* This sentence was added by a Spellzone user.
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