25 useful Japanese words for everyday conversation

I wasn't expecting to learn much from this video about 25 useful Japanese words because I thought I would know them all, but there were quite a few that were new to me:

uso (no way!)
chicchai (tiny and cute)
harahetta (I'm starving)
dekai (huge)
umai (tasty, more casual than oishii)
majide (you're not joking?)
dasai (uncool)
kakkoii (cool or attractive)
sugei (incredible)
tsukareta (I'm exhausted)