Synonyms and Antonyms for hard-shelled

4. hard (adv.)

with effort or force or vigor

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5. hard-shelled (adj.)

of animals or plants that have a hard shell

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6. hard (adj.)

very strong or vigorous

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7. hard (adv.)

with firmness

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8. hard (adj.)

characterized by effort to the point of exhaustion; especially physical effort

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9. hard (adv.)

slowly and with difficulty

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10. hard (adv.)

earnestly or intently

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