on solid ground
Confident or justified regarding a subject or argument.
He's on solid ground when he's analyzing the pros and cons of convertible debentures.
VERBS
be, feel, look, seem
become, go
When you leave chocolate in the sun, it will eventually go solid as it cools down.
ADV
extremely, very | absolutely, completely | almost, practically | quite
enough
The wooden chair seemed solid enough to support everyone at the table.
apparently, seemingly
VERBS
appear, be, look, seem | become | remain
ADV
extremely, really, very
absolutely, rock
Their friendship proved absolutely solid even after they hadn't spoken for years.
fairly, pretty
The team played fairly solid in the second half and almost came back to win.