True!
But that's kind of also true for all temperature words. What's hot for one thing is cold for another, etc. we've still made these other words anyways. That could be an entirely other shower thought
if that's the case what's the difference between warm and hot i always thought lukewarm was the warm side and tepid was the cold side of medium. i don't think there true medium where you can't tell if it's warm or cool side.