1. 形容詞
   無效的, 無效果的
   無事實根據的, 理論失當的
   

   同義字詞
   baseless,foundationless,groundless,invalid,unfounded,unreasonable,unsubstantiated,unsupported,unwarranted
   bad,inoperative,invalid,nonbinding,nugatory,null,null and void,void
   

例句

1. It was Mr. Ley who tried to keep the TV show from using nonvalid science, such as having a meteor crash into the Polaris every show.
2. A nonvalid indicator was assigned to a MAT score when there were whole missing pages or large numbers of consecutive questions not answered.
3. When a computer that makes a DNS query receives a response that contains nonvalid IP addresses, the clients and servers are unable to locate one another.