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Not effective or useful and not working correctly

useless

adjective

useless objects have no purpose or cannot do what they were designed to do

useless

adjective

useless activities are not effective in achieving the purpose that they were intended to achieve

ineffective

adjective

something that is ineffective does not work correctly or does not do what you want it to do

inefficient

adjective

not working in the best possible way, especially by not using time, supplies, energy etc in the most effective way

defective

adjective

not made correctly, or not working correctly

faulty

adjective

not working correctly or made correctly

purposeless

adjective

lacking a useful purpose

pathetic

adjective

useless or not effective in an annoying way

worthless

adjective

not having any value, or not useful

cumbersome

adjective

not simple, fast, or effective enough and difficult or annoying to use

dark pool

a method of financial trading in which share prices are hidden and not openly available to the public

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dividend

a share of the profits of a company, paid once or twice a year to the people who own the...

Open Dictionary

subtweet

to post a tweet, usually a negative one, that mentions a person without using the @ sign, so that they will not see the message on their Twitter feed …

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