subtractive

Synonyms

ablative

tending to ablate; i.e. to be removed or vaporized at very high temperature

reductive

characterized by or causing diminution or curtailment

Antonyms:

additive

characterized or produced by addition

accumulative, cumulative

increasing by successive addition

addable, addible

capable of being added or added to

additional, extra

further or added

complemental, complementary, completing

acting as or providing a complement (something that completes the whole)

incremental

increasing gradually by regular degrees or additions

intercalary

having a day or month inserted to make the calendar year correspond to the solar year: "Feb. 29 is an intercalary day"

summational, summative

of or relating to a summation or produced by summation

supplemental, supplementary

added to complete or make up a deficiency

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