| Part of Speech | Definition | |
| Adjective | 1. Not prescribed by official duty.[Websters]
2. Virtually never used base adjective of the rarely used adverb extra-officially.[Eve - graph theoretic] | |
| Adverb Form (extra-officially) | 1. Virtually never used adverbial inflection of the rarely used adjective extra-official.[Eve - graph theoretic] | |
Source: Webster's Revised Unabridged Dictionary (1913), compiled from various sources, under license. | Top | |
Date "EXTRA-OFFICIAL" was first used in popular English literature: sometime before 1822. (references) |
