deleterio
harmful
adjective deh-leh-TEH-ryoh Rare
Origin: Latin deleterius, from delere (to destroy)
Also means
detrimental
Usage Note
Deleterio describes something that causes serious damage over time, often used in formal or medical contexts. The plural is deleteri (m) / deleterie (f). It pairs naturally with nouns like effetti (effects) or conseguenze (consequences).
Examples
"Il fumo ha effetti deleteri sulla salute."
Natural Translation
Smoking has harmful effects on health.
Literal Translation
The smoke has effects harmful on-the health.
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