Thesaurus Thursday: "Arduous."

Hi!  Today's word is "arduous," an adjective meaning "difficult, exhausting, or formidable."

Mr. Nerd decided to embark upon the arduous, ambitious task of teaching me to play Dota 2.  

Image from steamcommunity.com

I currently spend most of my time fleeing and shouting, 

"Run away! Run away!"