Meaning : In a way that was not expected.
Example :
Her brother showed up at the wedding out of the blue.
Synonyms : out of the blue
Meaning : Without advance planning.
Example :
They met accidentally.
Synonyms : accidentally, by chance, circumstantially
With intention. In an intentional manner.
He used that word intentionally.Unexpectedly ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Unexpectedly ka matlab kya hota hai?