Search Result for "unshakable": 
Wordnet 3.0

ADJECTIVE (2)

1. marked by firm determination or resolution; not shakable;
- Example: "firm convictions"
- Example: "a firm mouth"
- Example: "steadfast resolve"
- Example: "a man of unbendable perseverence"
- Example: "unwavering loyalty"
[syn: firm, steadfast, steady, stiff, unbendable, unfaltering, unshakable, unwavering]

2. without flaws or loopholes;
- Example: "an ironclad contract"
- Example: "a watertight alibi"
- Example: "a bulletproof argument"
[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. [1913 Webster]
WordNet (r) 3.0 (2006):

unshakable 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, without nerves