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flat, bland, dull, uninteresting, boring | lacking stimulating characteristics; uninteresting | |
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dull, tedious, boring, irksome, tiresome, wearisome, slow, deadening, ho-hum, mind-numbing | so lacking in interest as to cause mental weariness | |
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boring, drilling | the act of drilling | |
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boring, drilling, oil production | the act of drilling a hole in the earth in the hope of producing petroleum |