constant

persistent in occurrence and unvarying in nature

• “maintained a constant temperature”
• “a constant beat”
• “principles of unvarying validity”
• “a steady breeze”

continually recurring or continuing without interruption

• “constant repetition of the exercise”
• “constant chatter of monkeys”

steadfast in purpose or devotion or affection

• “a man constant in adherence to his ideals”
• “a constant lover”
• “constant as the northern star”

uninterrupted in time and indefinitely long continuing

• “the ceaseless thunder of surf”
• “in constant pain”
• “night and day we live with the incessant noise of the city”
• “the never-ending search for happiness”
• “the perpetual struggle to maintain standards in a democracy”
• “man”
• “;”

a quantity that does not vary

a source of the dye archil and of litmus