When it comes to ideas like treating each other with respect and exercising self-control, she's on solidground.
Christianity Today (2000)
Here he is on solidground and the descriptions are sprightly enough.
Times, Sunday Times (2012)
Its practice of pulling money out of companies before they were on solidground is not unassailable.
Times, Sunday Times (2012)
Definition of 'ground'
ground
(graʊnd)Explore 'ground' in the dictionary
uncountable noun [oft on adj N]
You can use ground in expressions such as on shaky ground and the same ground to refer to a particular subject, area of experience, or basis for an argument.
Definition of 'solid'
solid
(sɒlɪd)Explore 'solid' in the dictionary
adjective
You use solid to describe something such as the basis for a policy or support for an organization when it is strong, because it has been developed carefullyand slowly.