英汉词典

1. 直率的；不客气的；直言不讳的
    If you are blunt, you say exactly what you think without trying to be polite.

blunt的反义词

    e.g. She is blunt about her personal life...
           她对自己的私生活直言不讳。
    e.g. She told the industry in blunt terms that such discrimination is totally unacceptable.
           她直截了当地告诉业界，这种歧视是完全无法接受的。