Word Study
unstoppable
WORDNET DICTIONARY
Adjective unstoppable has 1 sense
OXFORD DICTIONARY
unstoppable, adj. that cannot be stopped or prevented.
Derivative
unstoppability n. unstoppably adv.
THESAURUS
unstoppable
certain, fated, fateful, indefeasible, ineluctable, inescapable, inevasible, inevitable, inexorable, inflexible, irresistible, irrevocable, necessary, relentless, resistless, sure, sure as death, sure as fate, unavoidable, uncontrollable, undeflectable, unpreventable, unyielding
For further exploring for "unstoppable" in Webster Dictionary Online