abortive
US /əˈbɔːr.t̬ɪv/
UK /əˈbɔːr.t̬ɪv/
1.
failing to produce the intended result; unsuccessful.
:
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The rebels made an abortive attempt to overthrow the government.
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Their plans for a new business proved to be abortive.
2.
(of a course of development) interrupted while still incomplete.
:
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The project was abortive due to lack of funding.