Direct opposites:
* Withdrawal: This refers to the act of leaving or retreating from a place.
* Liberation: This refers to the act of freeing a place or people from oppression or control.
* Evacuation: This refers to the act of leaving a place, especially due to danger or threat.
Antonyms based on the type of invasion:
* If "invasion" refers to a military takeover, the opposite might be peace, diplomacy, or negotiation.
* If "invasion" refers to an intrusion of privacy, the opposite might be respect, boundaries, or privacy**.
* If "invasion" refers to the spread of a disease, the opposite might be immunity, cure, or prevention**.
Other related terms:
* Retreat: This refers to a movement back from a place.
* Surrender: This refers to the act of giving up or yielding.
* Defense: This refers to the act of protecting oneself from attack.
The best opposite for "invasion" will depend on the specific context and the type of invasion you are referring to.