Some synonyms for vast include:
very large, big, broad, enormous, huge, great, immense, widespread, spacious, ample
Achievement is an example.
straight
Wide, extensive, widespread, prevalent, expansive, huge.
Some synonyms of the word enormous are: very large huge colossal vast massive gigantic immense humongous excessive intense great tremendous
A synonym is a word that means the same, or almost the same. So yes the word absurd could be a synonym form another word or there are synonyms for the word absurd.
The closest synonym for the word improving is better.
The closest synonym for the word "inferior" is "lesser."
The closest synonym to the word visible would be 'in view'.
The closest synonym for the word controversy is "dispute" or "debate."
The closest synonym for the word "believed" is "trusted" or "accepted."
The closest synonym for equipped would be armed.
vast
Apparently, "incline" is the closest synonym.
the correct synonym for the word maintaining is Preserving.
information
daydream
Succeeded