supplementaryadjective
uk/ˌsʌp.lɪˈmen.tər.i/us/ˌsʌp.ləˈmen.t̬ɚ.i/supplementary adjective (ANGLE)
specialized mathematics If an angle is supplementary to another angle, it forms 180° when combined with it.
Thesaurus: synonyms and related words
Geometry: describing angles, lines & orientations
- alternate angle
- angle of incidence
- antinode
- asymptote
- asymptotic
- axial
- erect
- horizontal
- oblique
- parallel
- plumb
- prominent
- reflection
- right angle
- secant
- slant
- supplementary angle
- tangent
- tangential
- transversal
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supplementary adjective (EXTRA)
C2 mainly UK US usually supplemental extra:
a supplementary income
Thesaurus: synonyms and related words
Too much and unnecessary
- a sledgehammer to crack a nut idiom
- avalanche
- be up to your neck (in sth) idiom
- bellyful
- binge
- carry/take coals to Newcastle idiom
- hyper
- immoderate
- inessential
- insatiable
- lousy
- overdose
- play gooseberry idiom
- plenty
- plethora
- proliferate
- redundancy
- sock
- surplus
- weigh
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