rigid
adj. · n.-
1 stiff and unbending (adj.) B2 Upper Intermediate Academicstiff and difficult to bend or move.
physically stiff and resistant to deformation or bending.
ExampleThe new plastic is rigid and strong, so it will not break under pressure.
ExampleThe structural integrity of the bridge depends on a rigid steel frame that can withstand high winds without swaying.
- flexible
- pliable
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2 strict and unchanging (adj.) B2 Upper Intermediate Academicvery strict and not easy to change, like a rule or a way of thinking.
unwilling or unable to adapt to change; strictly adhering to a set of rules or beliefs.
ExampleThe school has rigid rules about what students can wear.
ExampleThe manager's rigid adherence to the original schedule prevented the team from exploring more efficient alternatives during the crisis.
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3 type of airship (n.) C2 Proficiency Technical Sciencea large aircraft, like a blimp, that has a metal frame inside to keep its shape.
an airship whose shape is maintained by a structural framework rather than internal gas pressure.
ExampleEarly engineers preferred the rigid because it could carry heavier loads over long distances.
ExampleUnlike the non-rigid blimp, the rigid featured a complex internal skeleton of duralumin girders to support its massive outer skin.
- dirigible
- zeppelin
- blimp
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4 bicycle without suspension (n.) C1 Advanced Technical Sporta bicycle that does not have any springs or systems to absorb bumps.
a bicycle lacking any suspension system in the front fork or rear frame.
ExampleHe prefers riding a rigid on smooth trails because it is lighter and faster.
ExampleWhile modern mountain bikes often feature complex shocks, many purists still enjoy the direct feedback provided by a fully rigid frame.
- hardtail
- full suspension
From Middle English rigide, from Latin rigidus (“stiff”), from rigeō (“I am stiff”). Compare rigor. Merged with Middle English rigged, rygged, rugged (“upright like a spine, rigid”, literally “ridged”), from ridge + -ed.