List of tread water synonyms and tread water related words.
abide, bathe, be still, coast, dive, float, freeze, go in swimming, go in wading, keep quiet, lie still, mark time, not breathe, not stir, remain, remain motionless, repose, rest, skinny-dip, stand, stand fast, stand firm, stand still, stay, stay put, stick, stick fast, swim, tarry, wade