Simple past tense and past participle of deem.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "deemed" in a sentence
"Currently, a title deemed inappropriate for a 15 certificate - the highest available for videogames (but not films) in the country - cannot be sold there."
"Caledon town councillor Gord McClure is under fire for using a term deemed to be an anti-Semitic."
"So, basically, "Yankee" is a term deemed so insulting that two separate groups who had it applied to them were so revolted that they in turn tagged another group with it."