[{"Bold_text": null, "List Items": ["a prefix meaning “not,” freely used as an English formative, giving negative or opposite force in adjectives and their derivative adverbs and nouns (unfair; unfairly; unfairness; unfelt; unseen; unfitting; unformed; unheard-of; un-get-at-able), and less freely used in certain other nouns (unrest; unemployment)."]}, {"Bold_text": null, "List Items": ["a prefix freely used in English to form verbs expressing a reversal of some action or state, or removal, deprivation, release, etc. (unbend; uncork; unfasten, etc.), or to intensify the force of a verb already having such a meaning (unloose)."]}, {"Bold_text": "pronoun", "List Items": ["one:young uns; He's a bad un."]}, {"Bold_text": "abbreviation for", "List Items": ["United Nations(def1) United Nations(def1)."]}]