IPA: //ˌæl.kəˈhɒ.lɪk//
KK: /ˈæl.kə.hɑː.lɪk/
Relating to or caused by the substance found in drinks that can make people drunk, or describing someone who has a problem with drinking too much of it.
He has been struggling with alcoholic tendencies for years.
Comparative: more alcoholic
Superlative: most alcoholic
A person who regularly drinks too much alcohol and may have a problem with it.
He has been an alcoholic for many years, struggling with his addiction.
Alcoholic → It is formed from "alcohol" (from Arabic *al-kuḥl*, meaning the kohl or fine powder) and the suffix "-ic" (meaning pertaining to). The word "alcoholic" refers to something pertaining to alcohol, especially in the context of addiction or dependence on alcoholic beverages.
Think of 'alcohol' as the substance and '-ic' meaning related to it — so 'alcoholic' describes someone who is related to or affected by alcohol.