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  1. Dictionary
    deleterious
    /ˌdɛlɪˈtɪərɪəs/

    adjective

    • 1. causing harm or damage: formal "divorce is assumed to have deleterious effects on children"

    More definitions, origin and scrabble points

  2. Deleterious definition: injurious to health. See examples of DELETERIOUS used in a sentence.

  3. Meaning of deleterious in English. deleterious. adjective. formal uk / ˌdel.ɪˈtɪə.ri.əs / us / ˌdel.ɪˈtɪr.i.əs / Add to word list. harmful: deleterious effect These drugs have a proven deleterious effect on the nervous system. Synonyms. damaging. detrimental formal. harmful. injurious formal. prejudicial formal. Opposites. harmless. innocuous.

  4. The meaning of DELETERIOUS is harmful often in a subtle or unexpected way. How to use deleterious in a sentence. Did you know? Synonym Discussion of Deleterious.

  5. If something is deleterious, it does harm or makes things worse. Smoking has obvious deleterious effects on your health, not to mention your social life. My parents were worried that their divorce would have a deleterious effect on us kids, but in the end it was less harmful than watching them fight all the time.

  6. adjective. formal us / ˌdel.ɪˈtɪr.i.əs / uk / ˌdel.ɪˈtɪə.ri.əs / Add to word list. harmful: deleterious effect These drugs have a proven deleterious effect on the nervous system. Synonyms. damaging. detrimental formal. harmful. injurious formal. prejudicial formal. Opposites. harmless. innocuous. Compare. hurtful.

  7. deleterious. (delɪtɪəriəs ) adjective. Something that has a deleterious effect on something has a harmful effect on it. [formal] Petty crime is having a deleterious effect on community life. Synonyms: harmful, bad, damaging, destructive More Synonyms of deleterious. Collins COBUILD Advanced Learner’s Dictionary.

  8. Define deleterious. deleterious synonyms, deleterious pronunciation, deleterious translation, English dictionary definition of deleterious. adj. Having a harmful effect; injurious: the deleterious effects of smoking. del′e·te′ri·ous·ly adv. del′e·te′ri·ous·ness n.

  9. Jun 2, 2024 · deleterious (comparative more deleterious, superlative most deleterious) Harmful, often in a subtle or unexpected way. Synonyms: destructive, harmful, hurtful, injurious, noxious, pernicious; see also Thesaurus: harmful

  10. Definition of deleterious adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  11. deleterious meaning, definition, what is deleterious: damaging or harmful: Learn more.