想不到

unexpected / hard to imagine / it had not occurred to me / who could have thought that

to think / to believe / to suppose / to wish / to want / to miss (feel wistful about the absence of sb or sth)

to think (about) / to think of; to devise / to think (that); to believe (that) / to desire; to want (to) / to miss (feel wistful about the absence of)

no; not so / (bound form) not; un-

not to arrive / not reaching / insufficient / less than

to (a place) / until (a time) / up to / to go / to arrive / (verb complement denoting completion or result of an action)

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

unexpected / previously unimagined