adj．令人不安的，不能安慰的：不能给人安慰或信心的。
... distressing 使人痛苦的 unreassuring 焦虑的 troubling 令人不安的 ...
相关网页
Moreover, critical conclusions of the NIE are couched in such unreassuring terms as "moderate-to-high confidence" even when implicating crucial issues of national security.
CENTERFORSECURITYPOLICY: About that NIE...