| autoimmune | (adjective) of or relating to the immune response of the body against substance normally present in the body | - |
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| immune | (adjective) relating to the condition of immunity | - |
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| (adjective) secure against | - |
| (adjective) (usually followed by `to') not affected by a given influence | - |
| (adjective) relating to or conferring immunity (to disease or infection) | Synonyms: resistant |
| inopportune | (adjective) not opportune | - |
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| jejune | (adjective) displaying or suggesting a lack of maturity | Synonyms: adolescent, juvenile, puerile |
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| (adjective) of insufficient quantity to meet a need | Synonyms: inadequate, poor, short |
| (adjective) lacking interest or significance or impact | Synonyms: insipid |
| nonimmune | (adjective) (often followed by `to') likely to be affected with | Synonyms: liable, nonresistant, unresistant |
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| opportune | (adjective) suitable or at a time that is suitable or advantageous especially for a particular purpose | - |
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| picayune | (adjective) (informal) small and of little importance | Synonyms: fiddling, footling, lilliputian, little, niggling, petty, piddling, piffling, trivial |
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| triune | (adjective) being three in one; used especially of the Christian Trinity | - |
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