frighteningly
adverb
- in a manner to cause fright
Wiktionary
adv
Etymology: Etymology tree English frightening Middle English -ly English -ly English frighteningly From frightening + -ly.
- In a frightening or terrifying manner.
- Very; beyond usual expectation so as to cause surprise or concern.
“The pitcher that was set before me was frighteningly large.”
“Risk is everywhere.[…]For each [kind] there is a frighteningly precise measurement of just how likely it is to jump from the shadows and get you. “The Norm Chronicles”[…]aims to help data-phobes find their way through this blizzard of risks.”