Incomplete Wudhu dream meaning is explained below using 1 different source. Each interpretation is shown with its source.
Interpretation 1 — Ibn Seerin
An incomplete wudhu with ordinary clean water suggest that the observer’s worldly and religious pursuits will remain incomplete. But as opposed to wudhu with milk, wine etc, matter will be less harsh.
The same applies with salaah which is incomplete.
Source: Islamic Dream Interpretation • Author: Ibn Seerin