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view main entry for sleekadjective  /sliːk/ 

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noun [uncountable]
sleekness noun [uncountable]Modern and fashionable and up-to-date: modern, contemporary, advanced, state-of-the-art, futuristic, space-age, modernistic, up-to-the-minute, hip, ahead of your/its etc timeCheating, dishonest and insincere behaviour: dishonesty, deceit, corruption, deception, sleaze, foul play, misconduct, guile, duplicity, double-dealingSoft and smooth: soft, sleek, silky, velvety, waxy, satiny, feathery, slick, fluffy, silken

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