dreadful adj.
VERBS be, feel, look, smell, sound, taste Poor thing! You look absolutely dreadful! (= very ill)
ADV. really I feel really dreadful about letting you down. | absolutely, quite, truly To be honest, her singing was quite dreadful. a truly dreadful hat | pretty, rather
PREP. for It must have been dreadful for you!
You can also check other dicts: dreadful (English, 中文解释 ), wordnet sense, Collins Definition