Anonymous
Unknown
noun, の adjective
Someone with "nothing" for their name is either trying to remain anonymous or is simply unknown.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
フグは、無名のまま死にたくないと思っている。
Fugu doesn’t want to die in anonymity.
若手のアーティストの中には、無名でも良い作品を作る人がたくさんいます。
Among young artists, there are many unknowns producing good work.
アリアナ・グランデは自分の才能を少しも鼻にかけず、無名の新人歌手にも優しく接するらしいので、とても好感がもてます。
I heard that Ariana Grande is not a bit stuck up in spite of her talent and is very nice to unknown singers too, so I have a good impression of her.