Something that is massive is very large in size, quantity, or extent.
There was evidence of massive fraud.
有证据表明是巨额欺诈。
massive air attacks.
大规模的空袭。
If you describe a medical condition as massive, you mean that it is extremely serious.
He died six weeks later of a massive heart attack.
他6周后死于一次严重的心脏病发作。