/ ˈsɒlɪdli; NAmE ˈsɑːl-/ adverb
1.
in a firm and strong way :
a large, solidly-built house
He stood solidly in my path.
2.
continuously; without stopping :
It rained solidly for three hours.
3.
agreeing with or supporting sb/sth completely :
The state is solidly Republican.