Which word is opposite in meaning to practical? unreasonable reconnected destroyed disinterested

Let's look at the definitions of each word: Unreasonable, a living organism that cannot be reasoned with Reconnected, bringing back a connection that was lost before Destroyed, a thing or organism that was broken or hurt in some way Disinterested, no longer or not interested in now let's look at Practical, a good or reasonable idea, unreasonable is the best answer