TOEFL IELTS rigid Definition Unable to bend or be changed; inflexible. Example "The rigid board provided strong support for the shelf." Sign in to save TOEFL PDF — $25 IELTS PDF — $25 ← righteous rigidity → Study tips featuring "rigid" TOEFL Academic Vocabulary: Study by Topic Boost Your IELTS Writing With Precise Vocabulary Related words TOEFL brighten GRE abash GRE abate GRE abbreviate GRE abbreviation SAT abdicate GRE abduct SAT abet GRE abhor GRE abide SAT abject TOEFL ablaze