不到

不到	bù dào	not to arrive / not reaching / insufficient / less than
不	bù	no; not so / (bound form) not; un-
到	dào	to reach; to arrive / to leave for; to go to / to (a place); until (a time); up to (a point) / (verb complement indicating arriving at a place or reaching a point) / considerate; thoughtful; thorough