From the given options choose the one which is opposite in meaning to the word given below 

ADVENT

Departure

The word that is opposite in meaning to advent is departure.

• Advent means the arrival or appearance of someone or something.
• Departure means the act of leaving or going away.

The other options are not opposites of advent.

• Initiation means the act of starting or beginning something.
• Down means moving or pointing downwards.
• Introduction means the act of making someone or something known to someone else.