1. to separate the threads of something woven or knitted
Usage: past tense of unravel
2. to solve or explain something complicated or mysterious
Usage: past tense of unravel
3. to fall apart or become undone gradually
Usage: past tense of unravel

Examples

• The old sweater unravelled when she pulled the loose thread.
• The detective unravelled the mystery after weeks of investigation.
• Their marriage slowly unravelled over the years.
• She carefully unravelled the tangled yarn.
• The conspiracy unravelled when key witnesses came forward.
• His alibi unravelled under questioning.
• The fabric unravelled at the edges after many washes.