Extremely or extravagantly eager; impassioned or zealous. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "perfervid" in a sentence
"The book is overlong, repetitious, and written in a kind of perfervid prose that quickly becomes tiring."
"Despite sometimes being quite sensible (as Mr. Kenney is trying to be on citizenship, refugees and immigration), it's members of the Frat Pack who are immediately off the mark with the kind of perfervid rhetoric that goes with the Conservative communications strategy: unrelenting partisanship and obsessive control of information."
"It's a little known fact that during Palin's many undergraduate years, when she wasn't davinning while wearing her Magen David, she was a perfervid reader of fiction and one of her favorite authors was Borges and one of her favorite books by Borges was the classic collection, Labyrinths."