Was the second great awakening a movement of the unitarian and congregationalist denominations?

No, the Second Great Awakening was not primarily a movement of the Unitarian and Congregationalist denominations. Instead, it was a revivalist movement within various Christian denominations in the United States during the early 19th century that emphasized emotional religious experiences, personal conversion, and social reform. Unitarians and Congregationalists were not as prominent in this particular revival movement.