rock-solid
adjective
rock-sol·id ˈräk-ˈsä-ləd 
variants or rock solid
: completely or perfectly solid (as because of great strength or dependability)
supported by a rock-solid foundation
She has a rock-solid reputation.
Their relationship was rock solid.
… she moved in an artificial world without ever losing her rock-solid integrity.
Walter Clemons
Walter ClemonsHe is right to imply that the political structure is a little shaky—it was a myth that it was ever rock solid. Xan Smiley
Xan Smiley
Word History
First Known Use
1871, in the meaning defined above
- (as) solid as a rock
- (as) sound as a bell
- (as) stubborn as a mule
- (as) sure as I'm standing here
- (as) tough as old boots
- (as) ugly as sin
- (as) warm as toast
- (at) any minute (now)
- (at) any moment (now)
- (be) careful what you wish for
- (be) spoiling for
- (can) trace one's history (back) to
- (cast) in the same mold as
- (don't) I wish
- (don't) you wish
- (from) side to side
- (get) ready, (get) set, go
- (give) witness to
- (go) jump in a/the lake
- (have) stars in one's eyes
- (i tell you what
- (i'll see you around
- (I'll/we'll) see you around
- (I/I'll) tell you what
- (income) tax return