persisting Synonyms

dogging be obstinate sustaining surviving steady steadfast staying stable remaining reentering protracting prolonging persistent persistency persevering tarrying tenacious tireless unfaltering unflagging long-standing long-term unwavering long-lasting unfading unchanging never-ending unending untiring unremitting unrelenting perseverant perpetual everlasting eternal enduring durable continue continuing continued continual constant conserved chronic assiduous aeonian existing extant firm permanent