Synonyms and Antonyms for poisonous-substance

1. poisonous substance (n.)

any substance that causes injury or illness or death of a living organism

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6. substance (n.)

material of a particular kind or constitution

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7. poisonous (adj.)

marked by deep ill will; deliberately harmful

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9. poisonous (adj.)

having the qualities or effects of a poison

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10. poisonous (adj.)

not safe to eat

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