Adjective: unshakeable ,ún'shey-ku-b(u)l
- Without flaws or loopholes
"Her unshakeable logic won the debate";
- unassailable, unshakable, watertight, bulletproof, ironclad
- Marked by firm determination or resolution; not shakable
"unshakeable convictions";
- firm, steadfast, steady, stiff, unbendable, unfaltering, unshakable, unwavering
See also: incontestable, incontestible, resolute
Encyclopedia: Unshakeable