Antonyms of noun addition

1 of 6 senses of addition

Sense 2
addition -- (the act of adding one thing to another; "the addition of flowers created a pleasing effect"; "the addition of a leap day every four years")
       Antonym of subtraction (Sense 2)
      => subtraction, deduction -- (the act of subtracting (removing a part from the whole); "he complained about the subtraction of money from their paychecks")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun addition

6 senses of addition

Sense 1
addition, add-on, improver -- (a component that is added to something to improve it; "the addition of a bathroom was a major improvement"; "the addition of cinnamon improved the flavor")
       => component, constituent, element -- (an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system; "spare components for cars"; "a component or constituent element of a system")

Sense 2
addition -- (the act of adding one thing to another; "the addition of flowers created a pleasing effect"; "the addition of a leap day every four years")
       => increase, step-up -- (the act of increasing something; "he gave me an increase in salary")

Sense 3
addition, increase, gain -- (a quantity that is added; "there was an addition to property taxes this year"; "they recorded the cattle's gain in weight over a period of weeks")
       => indefinite quantity -- (an estimated quantity)

Sense 4
accession, addition -- (something added to what you already have; "the librarian shelved the new accessions"; "he was a new addition to the staff")
       => acquisition -- (something acquired; "a recent acquisition by the museum")

Sense 5
addition -- (a suburban area laid out in streets and lots for a future residential area)
       => suburb, suburbia, suburban area -- (a residential district located on the outskirts of a city)

Sense 6
summation, addition, plus -- (the arithmetic operation of summing; calculating the sum of two or more numbers; "the summation of four and three gives seven"; "four plus three equals seven")
       => arithmetic operation -- (a mathematical operation involving numbers)