Hyperbole and Superlative

much,more,most

hindmost

flattest

more obedient, most obedient

more gleefully, most gleefully

​The thought of being alone on the island while so many suns rose from the sea and went slowly back into the sea filled my heart with loneliness.

the tree swayed

It is not often you would want to compare 'up'. Usually something is up or down or neither, if you are referring to direction. If you are using it to describe someone's mood, you could say 'more up' and 'most up'.

most, more

more boring, most boring

more practical, most practical

more useful, most useful

more lasting, most lasting

farthest

more impulsive, most impulsive

Adjective, comparative, superlative

little, less, least

more attractive, most attractive

more cruelly, most cruelly

more freely, most freely

more greedily, most greedily

The answer is fullest

more carefully, most carefully

more wonderful, most wonderful

more intelligent, most intelligent

more direct, most direct