TOEFL IELTS boring Definition Not interesting or exciting; causing boredom. Example "The lecture was so boring that several students fell asleep." Sign in to save TOEFL PDF — $25 IELTS PDF — $25 ← boredom borough → Study tips featuring "boring" 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