- in a shocking, or disagreeable manner
- (intensifier): you're dreadfully kind
WordReference Random House Learner's Dictionary of American English © 2026
dread•ful•ly /ˈdrɛdfəli/USA pronunciation
adv. in a dreadful manner or way:He drove dreadfully.
WordReference Random House Unabridged Dictionary of American English © 2026- very;
extremely:It was a dreadfully bad day.
dread•ful•ly
(dred′fə lē),USA pronunciation adv.
- in a dreadful way:The pain has increased dreadfully.
- very;
extremely:Sorry to be so dreadfully late.
- Middle English. See dreadful, -ly 1275–1325
Collins Concise English Dictionary © HarperCollins Publishers::
dreadfully /ˈdrɛdfʊlɪ/ adv
'dreadfully' also found in these entries (note: many are not synonyms or translations):