Search Dictionary
Definition of sinisterly
sinisterly
/ˈsɪn.ɪ.stɚ.li/
sin · is · ter · ly
Adjective:sinister
sinisterly Lexical Profile
CEFR
C1
Grade
10
Tier
2
Usage
Rare
Syllables
4
sinisterly Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adverb
1
In a manner that suggests something harmful, evil, or ominous is happening or will happen; menacingly.
Example
"The empty hallways of the abandoned hospital echoed sinisterly in the dim light."
Synonyms
View all synonyms for sinisterly Antonyms
View all antonyms for sinisterlyWord Origin & Etymology
Formed from the adjective 'sinister' (derived from Latin 'sinister', meaning 'on the left side', which Roman augurs considered unlucky or unfavorable) plus the adverbial suffix '-ly'.
Cite this Entry
Wordmom. (2026). Definition of Sinisterly. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/sinisterly