- 1not well known synonym unknown an obscure German poet We went to see one of Shakespeare's more obscure plays. He was born around 1650 but his origins remain obscure.
- 2 difficult to understand I found her lecture very obscure. For some obscure reason, he failed to show up. The meaning of his comment was obscure to everyone but himself.
- adverb They were making her feel obscurely worried (= for reasons that were difficult to understand).
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