chronic
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Related to chronic fatigue and immunodeficiency syndrome: chronic fatigue immune dysfunction syndrome
chronic
adjective ceaseless, confirmed, constant, continual, continuing, continuous, cyclical, deep-rooted, deep-seated, drawn out, endless, enduring, entrenched, ever-present, everlasting, extended, forever, habitual, immedicable, incessant, inextinguished, lasting, lingering, long-lived, long-standing, longstanding, maintained, not averruncated, not restorable, of long duration, often, ongoing, perdurable, perennial, permanent, perpetual, persevering, persistent, persisting, prolonged, protracted, recurrent, recurring, regular, repeating, repetitive, resisting, returning, returning at intervals, serious, set, settled, steadfast, stubborn, sustained, unalleviated, unceasing, uncorrectable, undestroyed, undying, unending, unerasable, unfading, unhealable, uninterrupted, unmitigated, unmitigating, unremedied, unremittent, unremitting, unshifting, unslackening, unstopped, unsubsiding, unsuppressed, unvarying, unyielding, virulent, wearingSee also: constant, durable, habitual, incorrigible, inveterate, permanent, perpetual, persistent, stable