[syn: unassailable, unshakable, watertight, bulletproof]
The Collaborative International Dictionary of English v.0.48:
Unshakable \Un*shak"a*ble\, a.
Not capable of being shaken; firm; fixed. --Shak. J. S. Mill.
WordNet (r) 3.0 (2006):
adj 1: marked by firm determination or resolution; not shakable;
"firm convictions"; "a firm mouth"; "steadfast resolve";
"a man of unbendable perseverence"; "unwavering loyalty"
[syn: firm, steadfast, steady, stiff,
unbendable, unfaltering, unshakable, unwavering]
2: without flaws or loopholes; "an ironclad contract"; "a
watertight alibi"; "a bulletproof argument" [syn:
unassailable, unshakable, watertight, bulletproof]
Moby Thesaurus II by Grady Ward, 1.0:
24 Moby Thesaurus words for "unshakable":
abiding, balanced, cool, fast, fiducial, firm, firm as Gibraltar,
fixed, imperturbable, in equilibrium, predictable, reliable,
secure, solid, sound, stable, steadfast, steady, substantial,
unflappable, unflinching, unwavering, well-balanced,