1. Illicit (a) /ɪˈlɪs.ɪt/: illegal or disapproved of by society: bất hợp pháp
Example: illicit drugs such as cocaine and cannabis
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2. Illiterate (a) /ɪˈlɪt.ər.ət/: unable to read and write: mù chữ
Example: A surprising percentage of the population is illiterate.
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3. Illegitimate (a) /ˌɪl.ɪˈdʒɪt.ə.mət/: not legal or fair: bất hợp pháp
Example: The rebels regard the official parliament as illegitimate.
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4. Illegal (a) /ɪˈliː.ɡəl/: not allowed by law: bất hợp pháp
Example: a campaign to stop the illegal sale of cigarettes to children under 16
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5. Inadequate (a) /ɪˈnæd.ɪ.kwət/: not good enough or too low in quality: không đủ
Example: This work is woefully (= extre mely) inadequate - you'll have to do it again.
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6. Illiberal (a) /ɪˈlɪb.ər.əl/: limiting freedom of expression , thought, behaviour, etc.: phi tự do
Example: illiberal policies
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7. Illogical (a) /ɪˈlɒdʒ.ɪ.kəl/: not reasonable, wise, or practical, usually because directed by the emotions rather than by careful thought: vô lý
Example: It is an illogical statement, because if one part is true, then the other must be false.
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