Have you heard of unpaired words? They’re words that seem like they should have a partner but don’t. For example…
- Someone can look disshevelled, but you rarely hear of someone appearing shevelled.
- Shevelled people often have kempt hair.
- Inflammable and flammable mean exactly the same thing.
- Inert gasses are nice but where are all the ert gasses?
Follow the link to see a more complete list, courtesy of wikipedia.