No, I think that we are talking about different beliefs here.
“The beliefs of individual Unitarian Universalists range widely, and can include humanism, Judaism, Christianity, Islam, Hinduism, Sikhism, Buddhism, Taoism, syncretism, Omnism, Neopaganism, atheism, agnosticism, pantheism, panentheism, pandeism, deism and the teachings of the Baháʼí Faith.”
Unitarians are Christians who reject the idea of the Trinity, while Unitarian Universalists are much more open and fluid in what they believe. Both of them have organized churches.
Are you sure that you’re looking at the right wiki? It has disambiguation.
“Unitarian Universalism
This article is about the liberal religious movement. For the Christian theology that includes a central belief in the unitary nature of God, see Unitarianism.”