Home/USA Today Rootonym/Stealthily treacherous or deceitful; intended to entrap or beguile (adjective)
Stealthily treacherous or deceitful; intended to entrap or beguile (adjective)
Looking for the answer to the USA Today Rootonym clue “Stealthily treacherous or deceitful; intended to entrap or beguile (adjective)”? The solution is INSIDIOUS, a 9-letter word built on the root SID (“sit, settle”). It appeared in the June 14, 2026 (Sunday) USA Today Rootonym. See the full puzzle for that day's other words.
Answer
INSIDIOUS
**SID****SIDmeans “sit, settle”
In a sentence
James insists that heroin is such an addictive and INSIDIOUS drug that it destroys lives.
About this clue
The Rootonym clue “Stealthily treacherous or deceitful; intended to entrap or beguile (adjective)” has the answer INSIDIOUS (9 letters), built on the root SID, which means “sit, settle”. Browse the full June 14, 2026 Rootonym puzzle for the other three words, or see all Rootonym answers.