'Portentously' definitions:
Definition of 'portentously'
From: WordNet
adverb
In a portentous manner; "portentously, the engines began to roll"
Definition of 'Portentously'
From: GCIDE
- Portentous \Por*tent"ous\, a. [L. portentosus.]
- 1. Of the nature of a portent; containing portents; foreshadowing, esp. foreshadowing ill; ominous. [1913 Webster]
- For, I believe, they are portentous things. --Shak. [1913 Webster]
- Victories of strange and almost portentous splendor. --Macaulay. [1913 Webster]
- 2. Hence: Monstrous; prodigious; wonderful; dreadful; as, a beast of portentous size. --Roscommon. [1913 Webster] -- {Por*tent"ous*ly}, adv. -- {Por*tent"ous*ness}, n. [1913 Webster]