2. A funny word that if said fast enough can be pronounced "in - de - faggot - a - ble". Proper use denotes saying this word to closet homosexuals repeatedly until they catch on.
Person A (straight male) - "Dude, Jerry you're so indefatigable working on that roofing."
"The Battle of Aleppo in 2015, with its simultaneous multi-levelled siege and being able to travel in a straight line and travel through government, YPA, government, rebel, and ISIS territory, truly was an omnishambolic quagmire of indefatigable proportions".