Origin: Latin suffix -able
Unshakable has 3 different meanings across 1 category:
marked by firm determination or resolution; not shakable
"firm convictions"
"a firm mouth"
"steadfast resolve"
"a man of unbendable perseverence"
"unwavering loyalty"
without flaws or loopholes
"an ironclad contract"
"a watertight alibi"
"a bulletproof argument"
Not able to be shaken; firm, solid