Similar words: pointless, dauntlessly, relentlessly, artlessly, listlessly, restlessly, tactlessly, spotlessly. Meaning: ['pɔɪntlɪslɪ] 
adv. in a pointless manner.
adv. in a pointless manner. 
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(1) Chemicals were pointlessly poisoning the soil.
(2) Innocent lives were cruelly and pointlessly wiped out.
(3) He argued pointlessly with his parents.
(4) He spent his life in pointlessly tiresome drudgery.
(5) It's pointlessly trying to keep your friendship secret—it's public knowledge already.
(6) It's pointlessly trying to keep your friendship secret — it's common knowledge already.
(7) I creep downstairs and roam pointlessly around.
(8) Tennis courts lit pointlessly except to inform the driver of the sheer dimension of the leisure complex burst into life.
(9) In Baquba(sentencedict.com/pointlessly.html), the Iraqi police detective flipped pointlessly through a file on his desk; the daylight was too faint to read by and the electricity had long since gone off.
(10) I journey to the library; draft notes for my defense; root pointlessly in the garden.
(11) The single framed print hanging on the wall on the first landing, the dead lightbulbs suspended pointlessly from their dusty flexes.
(12) Otherwise you simply free up time at work that you will then fritter away pointlessly.
More similar words: pointless, dauntlessly, relentlessly, artlessly, listlessly, restlessly, tactlessly, spotlessly, effortlessly, fruitlessly, thoughtlessly, uselessly, endlessly, aimlessly, carelessly, flawlessly, selflessly, painlessly, harmlessly, fearlessly, tirelessly, heedlessly, pitilessly, ruthlessly, needlessly, recklessly, helplessly, wordlessly, lifelessly, hopelessly.