
Word families (Nouns, Verbs, Adjectives, Adverbs): existence, exist, coexist, non-existent, existing, pre-existing
non-existent adj.
VERBS be | become Services for customers on public transport are becoming non-existent.
ADV. completely, totally The hotel turned out to be completely non-existent. | almost, practically, virtually Crime is almost non-existent in these communities.