Dictionary / Vocabulary / 到底
とうてい
(cannot) possibly; (not) by any means; (not) at all; utterly
JLPT N1 common word
私なんぞには野牛と鹿と馬とを描き分けることなど到底出来ない。
Me? I can't even begin to draw buffalo, deer and horses so you can tell them apart.
UFOは飛行物体とは到底思えないジグザグの動きで、東の山に飛んでいった。
The UFO, with a zigzag movement you couldn't think of as being a plane, flew off into the mountains in the east.
彼の部屋は小奇麗とは到底言えない。
His room is anything but neat.