Awful Definition

ôfəl

adjective

awfuller, awfulest

Extremely bad or unpleasant; terrible.

Had an awful day at the office.

American Heritage

Inspiring awe; highly impressive.

Webster's New World

Commanding awe.

American Heritage

Causing fear; terrifying.

Webster's New World

Filled with awe, especially:

American Heritage

Synonyms:

Antonyms:

adverb

Extremely; very.

Was awful sick.

American Heritage

Very; extremely.

Webster's New World

(colloquial) Very, extremely; as, an awful big house.

Wiktionary

Synonyms:

Other Word Forms of Awful

Base Form:

awful

Comparative:

awfuller

Superlative:

awfulest

Middle English aweful awe-inspiring blend of awe awe awe and ayfull awful (from Old English egefull) (ege dread) (-full -ful)

From American Heritage Dictionary of the English Language, 5th Edition
From awe +‎ -ful.

From Wiktionary