TRIANGLE Antonyms There are 8 antonyms of the word triangle. (opposite meanings)Did you mean?Definition of TRIANGLEAlso try opposite words for..trianglestriangularBest Opposite Words For TRIANGLETop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1circleverb, noun, adjectivev, n, adj2decagonnounn3hexagonnounn4nonagonnounn5octagonnounn6pentagonnounn7rectanglenounn8squareverb, nounv, n Alternatives for CIRCLE Words (21)roundbunchcoildiscdiskganggrouploopringbandcircuitencirclelaplotroachroofyroperophyrotaryroundaboutsetPhrases (4)dress circleforget me drugmexican valiumtraffic circleAbbreviations (1)r-2Opposite words for circle Alternatives for DECAGON Words (1)decastyleOpposite words for decagon Alternatives for NONAGON Words (1)enneagonOpposite words for nonagon Alternatives for OCTAGON Words (2)eight-sidedoctagonalOpposite words for octagon Alternatives for PENTAGON Words (3)five-sidedheptagonhexagonPhrases (1)the pentagonOpposite words for pentagon Alternatives for SQUARE Words (19)straightsquarelybourgeoisfeatherhashnormalorthogonalperpendicularpiazzaplazasharptetragonfoursquareheartylamesatisfyingsolidstraightforwardsubstantialPhrases (6)carpenter's squarepound signpublic squaresecond powersquare toessquare upOpposite words for square