This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

ad. In an expressive manner.

In an expressive manner; plainly and emphatically; with much significance; clearly; fully; specifically, in music, with feeling, or in accordance with the written expression-marks.

ad. with expression; in an expressive manner

"Here the saint blesses the store of a "homo plebeius cum uxore et filiis" -- a poor man with a wife and family -- a term expressively known in this day among all who have to deal with the condition of their fellow-men, from the chancellor of the exchequer to the relieving-officer."