Meaning : With intention. In an intentional manner.
Example :
He used that word intentionally.
I did this by choice.
Synonyms : advisedly, by choice, by design, designedly, intentionally, on purpose, purposely
Without intention. In an unintentional manner.
She hit him unintentionally.Without advance planning.
They met accidentally.Meaning : In a deliberate unhurried manner.
Example :
She was working deliberately.
Synonyms : measuredly