Found 2 items, similar to unshakable.
English → English (WordNet) Definition: unshakable 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, unbendable, unfaltering, unwavering] 2: without flaws or loopholes; “an ironclad contract”; “a watertight alibi”; “a bulletproof argument” [syn: ironclad, unassailable, watertight, bulletproof]
English → English (gcide) Definition: Unshakable Unshakable \Un*shak"a*ble\, a. Not capable of being shaken; firm; fixed. --Shak. J. S. Mill. [1913 Webster]