The loss dropped Adairsville to 5-7 overall and 1-3 in its sub-region, Region 7A-AA.
"[There is] not much to tell," Lady Tigers assistant coach Lance Hall said following the four-goal loss. "They were better than us. They had two real good midfielders that we just ... didn't have the answer for."
The Phoenix scored goals in the 20th, 22nd and 34th minutes to take a 3-0 lead at halftime.
In the second half, Sonoraville pushed that lead to 5-0, with goals in the 46th and 50th minutes, before the Lady Tigers' Nisa Ayers footed in a goal in the 60th minute, off an assist by Cassidy Greene.
Tia Hicks made 13 saves for Adairsville.
The Lady Tigers host Armuchee Thursday in what will be their final sub-region match of the season. In order to qualify for the Region 7-AA tournament, Adairsville would need to first win against the Lady Indians and hope for some losses by other schools.
"We have to beat Armuchee and get some help, so that door is closing," Hall said.
Regardless, the Lady Tigers season will not end without playing some friendlies, two of which are scheduled toward the end of the season.
"We're still allowed 18 games," Hall said. "We have a couple of games scheduled for the week after spring break."