Originally 'full of awe' — its collapse into 'very bad' is one of English's great depreciations, while 'awesome' kept the old sense.
Very bad or unpleasant; used to emphasize the extent of something, especially something unpleasant.
Formed from 'awe' (profound reverence and wonder, from Old Norse 'agi' meaning 'terror, dread') and the suffix '-ful' (full of). 'Awful' originally meant 'full of awe' — inspiring profound reverence, wonder, or dread, as when standing before God or beholding something sublime. The word was entirely positive or reverential. Its collapse into meaning merely 'very bad' is one of the great depreciations in English, while 'awesome' — built on the same root — retains the positive sense. Key roots: awe (Middle English (from Old Norse agi): "profound reverence, dread, wonder"), -ful (Old English: "full of"), *agiz (Proto-Germanic
'Awful' and 'awesome' are built from the same root — 'awe' — but their fates diverged dramatically. 'Awful' originally meant exactly what 'awesome' means today: inspiring wonder and reverence. When people described God as 'awful,' they meant it as the highest praise. The word's collapse into meaning 'very bad' happened in the nineteenth century, while 'awesome' kept the positive sense. English essentially discarded 'awful' and built a replacement from the same