Joyous might be a good one
allows
rejected.
probly like profitable
Go or start or commence are antonyms of halt
Quiet
A close antonym would be shrinkage.
ineffective, ineffectual, unable, impuissant, Impotent
unsurprised
allows
enlarge
plentiful
rejected.
Current or present is the closest antonym for the word former.
probly like profitable
sell
Go or start or commence are antonyms of halt
INSIGNIFICANT?