frighteningly
fright-en-ing-ly
adverb
In a manner causing great fear or alarm; to an extreme, often undesirable, degree.
"The cost of living has risen frighteningly quickly."
Thesaurus
Synonyms: scarily
fright-en-ing-ly
In a manner causing great fear or alarm; to an extreme, often undesirable, degree.
"The cost of living has risen frighteningly quickly."
Synonyms: scarily