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1. dysmenorrhea

noun. painful menstruation.

Antonyms

3. primary

adjective. ['ˈpraɪˌmɛri'] not derived from or reducible to something else; basic.

Antonyms

7. primary

adjective. ['ˈpraɪˌmɛri'] of primary importance.

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8. primary

noun. ['ˈpraɪˌmɛri'] (astronomy) a celestial body (especially a star) relative to other objects in orbit around it.

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Antonyms

9. primary

adjective. ['ˈpraɪˌmɛri'] of or being the essential or basic part.

Synonyms