不至于 
不至于[--於] bụ̀zhìyú* {D} f.e. be unlikely to end up or result in; not necessarily | Wèntí ∼ zhème yánzhòng. 问题∼这么严重。 The problem is unlikely to get this serious.
不至于 不至于 [bùzhìyú] unlikely to go so far as to; not as bad as 
不 不 negative / - / nail person drop negative 至 至 climax / - / wall soil climax 于 于 going from / potato / dry going from 不至于