Antonyms of noun curve

1 of 5 senses of curve

Sense 1
curve, curved shape -- (the trace of a point whose direction of motion changes)
       Antonym of straight line (Sense 1)
      => straight line -- (a line traced by a point traveling in a constant direction; a line of zero curvature; "the shortest distance between two points is a straight line")

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

5 senses of curve

Sense 1
curve, curved shape -- (the trace of a point whose direction of motion changes)
       => line -- (a length (straight or curved) without breadth or thickness; the trace of a moving point)

Sense 2
curve -- (a line on a graph representing data)
       => line -- (a length (straight or curved) without breadth or thickness; the trace of a moving point)

Sense 3
curve, curve ball, breaking ball, bender -- (a pitch of a baseball that is thrown with spin so that its path curves as it approaches the batter)
       => pitch, delivery -- ((baseball) the act of throwing a baseball by a pitcher to a batter)

Sense 4
curvature, curve -- (the property possessed by the curving of a line or surface)
       => shape, form, configuration, contour, conformation -- (any spatial attributes (especially as defined by outline); "he could barely make out their shapes")

Sense 5
bend, curve -- (curved segment (of a road or river or railroad track etc.))
       => section, segment -- (one of several parts or pieces that fit with others to constitute a whole object; "a section of a fishing rod"; "metal sections were used below ground"; "finished the final segment of the road")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb curve

5 senses of curve

Sense 1
swerve, sheer, curve, trend, veer, slue, slew, cut -- (turn sharply; change direction abruptly; "The car cut to the left at the intersection"; "The motorbike veered to the right")
       => turn -- (change orientation or direction, also in the abstract sense; "Turn towards me"; "The mugger turned and fled before I could see his face"; "She turned from herself and learned to listen to others' needs")

Sense 2
wind, twist, curve -- (extend in curves and turns; "The road winds around the lake"; "the path twisted through the forest")
       => be -- (have the quality of being; (copula, used with an adjective or a predicate noun); "John is rich"; "This is not a good answer")

Sense 3
arch, curve, arc -- (form an arch or curve; "her back arches"; "her hips curve nicely")
       => bend, flex -- (form a curve; "The stick does not bend")

Sense 4
crook, curve -- (bend or cause to bend; "He crooked his index finger"; "the road curved sharply")
       => bend, flex -- (form a curve; "The stick does not bend")

Sense 5
curl, curve, kink -- (form a curl, curve, or kink; "the cigar smoke curled up at the ceiling")
       => change surface -- (undergo or cause to undergo a change in the surface)