ineffective

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inefficacious

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wasteful

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inept

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uneconomical

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unproductive

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uneconomic

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efficient

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unprofitable

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inadequate

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insufficient

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nonproductive

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unskillful

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unoptimized

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counterproductive

adj 0.588

unsuccessful

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useless

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noneffective

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nonworking

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infeasible

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inoperative

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inelegant

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unusable

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inapt

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clumsy

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dysfunctional

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unhandy

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waste

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ill-spent

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incapable

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unhelpful

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underperforming

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unworking

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suboptimal

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inexpert

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unenterprising

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deficient

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impractical

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unavailing

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unworkable

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wasting

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defective

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ineffable

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ineloquent

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underused

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disadvantageous

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unsuitable

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underemployed

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maladroit

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unfit

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imprecise

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unreliable

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unskilled

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incommodious

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inconsistent

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inappropriate

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poorly

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timewasting

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profitless

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fruitless

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otiose

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worthless

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unthrift

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