Definition of intolerant. 1  1 : unable or unwilling to endure. 2  2a : unwilling to grant equal freedom of expression especially in religious mattersb : unwilling to grant or share social, political, or professional rights : bigoted. 3  3 : exhibiting physiological intolerance lactose intolerant.
Meat is good for 7 days if kept at 41 F (the temp of your fridge). A frozen steak takes 2 -3 days to thaw. So, the steak should be good until the 25th or the 26th. Of course, this is dependent on how old the steak was when you froze it.
Depends on what cut of sirloin. If its Top Sirloin, no need to tenderize it. Top Sirloin is the best cut of sirloin. Regular sirloin probably doesn't even need tenderized. Sirloin Tip, however, should be tenderized. Usually what I do, is marinate it in the fridge for 4-24 hours before cooking. Take out of fridge 2-3 hours before cooking, and let it come to room temp before cooking. That will make a tender steak.