What is the word minikui ne in Japanese?

'Minikui' has more than one meaning, and without seeing the Kanji, I cannot guarantee that my translation matches what you're referring to. However, 'minikui' can mean "hard to see; illegible," or "ugly." In this case, this sentence could mean:

"Hard to see, isn't it?" or "Ugly, isn't [it/she/he]?'