the mind > attention and judgement > lack of beauty > ugliness > [adverb] > hideously (3)
Qualifying a verb. Frightfully, horribly; with a deathlike look.
In a hideous manner: see the adjective. The sense ranges from ‘horribly, dreadfully, fearfully’, in earlier use, to ‘revoltingly’ in later. It is…
objectively. qualifying a verb: Like a ‘fright’; hideously. Obsolete.