sustained Synonyms

constant steady continuous unbroken tolerated unremitting sustainable supported upheld suffered free burning subacute overlong steadfast staying stationary stable settled uninterrupted unceasing unrelieved unfluctuating time-consuming surefooted validated stabile long-standing long-term drawn-out Antiguan nonstop round the clock unalterable unyielding never-ending running rigid relentless enduring durable corroborated continuing continued continual consistent ceaseless buttressed braced bolstered backed