List of sustained synonyms and sustained related words.
abiding, based on, bolstered, borne, braced, buttressed, ceaseless, changeless, chattering, constant, continual, continued, continuing, continuous, durable, enduring, even, firm, fixed, founded on, frozen, grounded on, guyed, held, immobile, immutable, incessant, indefatigable, intact, interminable, inviolate, lasting, level, machine gun, maintained, oscillating, perennial, permanent, perpetual, persistent, prolonged, propped, pulsating, quiescent, rapid, regular, remaining, repeated, rigid, shored up, solid, stable, staccato, static, stationary, stayed, staying, steadfast, steady, sticking, stuttering, supported, torpid, unaltered, unbroken, unceasing, unchangeable, unchanged, unchanging, unchecked, undestroyed, undying, unfading, unfailing, uniform, unintermitted, unintermittent, unintermitting, uninterrupted, unremitting, unshifting, unstopped, unvaried, unvarying, upheld, vibrating