'Threateningly' definitions:
Definition of 'threateningly'
(from WordNet)
adverb
In a menacing manner; "the voice at the other end of the line dropped menacingly" [syn: menacingly, threateningly]
Definition of 'Threateningly'
From: GCIDE
- Threatening \Threat"en*ing\, a. & n. from Threaten, v. -- {Threat"en*ing*ly}, adv. [1913 Webster]
- Threatening letters (Law), letters containing threats, especially those designed to extort money, or to obtain other property, by menaces; blackmailing letters. [1913 Webster]