insidiously
Adverb
- in a harmfully insidious manner
- "these drugs act insidiously"
Adv
- in an insidious manner
Origin / Etymology
From insidious + -ly.
Synonyms
Scrabble Score: 15
insidiously: valid Scrabble (US) TWL wordinsidiously: valid Scrabble Word in Merriam-Webster MW Dictionary
insidiously: valid Scrabble Word in International Collins CSW Dictionary
Words With Friends Score: 17
insidiously is a valid Words With Friends word