Some words don't have any antonyms. The closest word I know that may be one antonym for visualize is auditorize.
inaudibly, silently
what is the antonym of lavishly
Ignore and disregard are two antonyms of heed.
Conclude and stop are antonyms for the word cease.
The verb "cleave" is the only English word with two synonyms which are antonyms of each other: adhere and separate.
Two antonyms (opposites) of "Savagely" might be "Gently" and "Tenderly".
Fast and busy are antonyms for lazy.
Two antonyms for the noun play are: boredom and rest.Two antonyms for the verb play are: work and labor.Two antonyms for the verb play are: watch and listen.Two antonyms for the verb play are: sincerity and candor.
Shame or disgrace would both be antonyms of dignity.
I fun way to visualize infinity is to stand directly in between two parallel mirrors. A Mobius strip can also help visualize infinity.
stay, wait?
discouragement, annoyance
depart leave
Boredom, and calmness
acceptanceapprovalratificationsanction
seed, plant
ancient archaic