Rock solid
Synonyms for Rock solid
- unfailingreliable
- steadfastcertainreliable
- unflaggingcertain
- inexhaustiblecertain
- straightcertainreliable
- surefirecertain
- therecertainreliable
- never-failing
- delivering
- counted on
- come-through
- truereliable
- unrelenting
- unlimited
- tried-and-truereliable
- solidbased on sound reasoning
- same
- reliable
- invariable
- dependable
- continuing
- absolute
- continuous
- bottomless
- boundless
- continual
- endless
- assiduous
- eternal
- ceaseless
For more similar words, try Rock solid on Thesaurus.plus dictionary