The adverb has 2 meanings:
Meaning #1:
with intention; in an intentional manner
Synonyms: intentionally, designedly, on purpose, purposely, advisedly, by choice, by design
Antonyms: accidentally (meaning #1), accidentally (meaning #3)
Derived from adjective: deliberate (meaning #1)
Meaning #2:
in a deliberate unhurried manner
Synonym: measuredly
Derived from adjective: deliberate (meaning #2)



