What's an isosceles triangle?
Source: tatoeba (9176579)
Isosceles
/aɪˈsɒsəliːz/
Synonyms for "isosceles" (7 found)
Ranked by relevance and common usage.
Closest matches (2)
Adjective(2 words)
congruentequal side shape
Strong matches (2)
Adjective(2 words)
equal sided polygonequal-legged trapezoid
Related words (3)
Adjective(3 words)
Choosing the right synonym
- Closest matches in this entry: congruent, equal side shape, equal sided polygon, equal-legged trapezoid, equal-sided.
- Sentence evidence is available for isosceles, so synonym choice can be checked against real usage rather than a flat word list.
- Ranking signals come from opengloss.
Synonym selection checklist
- Match the part of speech before comparing meanings.
- Check whether the synonym changes intensity, formality, or emotional tone.
- Read the replacement inside the full sentence, not just beside "isosceles".
- Prefer the clearest word over the most unusual word when writing for speed or comprehension.
When not to replace "isosceles"
Keep "isosceles" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.
If two options seem close, choose the one that best matches the audience and purpose of the sentence.
Replacement workflow
1. Preserve meaning
Choose a synonym only if it keeps the core idea of "isosceles" intact in the sentence you are editing.
2. Tune tone
Check whether the replacement sounds more formal, casual, emotional, technical, or forceful than the original word.
3. Re-read context
Read the full sentence after the swap. Keep the synonym only when the sentence becomes clearer or more precise.
Review note: Synonym lists are ranked with lexical data and reviewed for practical writing value. Use the comparison notes, sentence evidence, and source labels together; a high-ranking synonym can still be wrong when the audience, register, or grammar changes.
Final fit check
After choosing a replacement for "isosceles", read the sentence once for meaning and once for rhythm. The best synonym should feel natural in the full sentence, not only accurate in a word list.
If the synonym makes the sentence slower, vaguer, or more dramatic than intended, keep "isosceles" or choose a simpler alternative from the closest-match group.
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
More general
9 entriesgeometric figuregeometric propertypolygonpolygon attributepolygon typequadrilateralshapetrapezoidtriangle type
More specific
6 entriesacute isosceles triangleisosceles trapezoidisosceles triangleobtuse isosceles triangleright isosceles trapezoidright isosceles triangle
Collocations
9 entriesbase angles equalcongruent sidesequal sidesisosceles base anglesisosceles figureisosceles geometryisosceles trapezoidisosceles triangletwo equal sides
Inflections
2 entriesmore isoscelesmost isosceles
Derivations
2 entriessimilar
2 entriesSample sentences
6 total sentences available.
Upon each exterior side draw an Isosceles Triangle of 480 Fathoms.
Source: wiktionary
A right double pyramid is isosceles when the extremities of the vertex-edge are at the same distance from the plane of the base.
Source: wiktionary
To prepare for the application of his method, Saccheri made use of a figure with which we are already acquainted. This is the isosceles quadrilateral with the two base angles right angles.
Source: wiktionary
Showing 4 of 6 available sentences.
Common questions
What are the closest synonyms for "isosceles"?
Closest matches include congruent, equal side shape, equal sided polygon, equal-legged trapezoid, equal-sided.
How should I check whether a synonym fits "isosceles"?
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.