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chronic suggests long duration or frequent recurrence and is used especially of diseases or habits that resist all efforts to eradicate them chronic sinusitis; inveterate implies firm establishment as a result of continued indulgence over a long period of time an inveterate liar; confirmed suggests fixedness in some condition or practice, often from a deep-seated aversion to change a confirmed bachelor; hardened implies fixed tendencies and a callous indifference to emotional or moral considerations a hardened criminal
See chronic in American Heritage Dictionary 4 Synonyms
See chronic in Webster's New World Roget's A-Z Thesaurus II
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