ETYM Latin persistens, -entis, p. pr. of persistere. Related to Persist.
1. Never-ceasing; SYN. relentless, unrelenting.
2. (Biology) Retained; not shed; SYN. lasting.
1. Not easily excited or upset
2. Not subject to change or variation especially in behavior
3. Securely in position; not shaky
Without pause, unceasingly, continually, constantly, relentlessly