indeterminate
adjective
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not leading to a definite ending or result“an indeterminate campaign”
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not capable of being determined“the indeterminate number of plant species in the jungle”
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not precisely determined or establishedundetermined
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having a capacity for continuing to grow at the apex“an indeterminate stem”
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of uncertain or ambiguous nature“the equivocal (or indeterminate) objects painted by surrealists”