Yes, odder is in the scrabble dictionary.
What does odder mean?
(ŏd) adj. odd·er, odd·est. 1. Deviating from what is ordinary, usual, or expected; strange or peculiar: an odd name; odd behavior.
What is the most unusual word?
The 15 most unusual words you'll ever find in English
- Serendipity. This word appears in numerous lists of untranslatable words and is a mystery mostly for non native speakers of English. ...
- Gobbledygook. ...
- Scrumptious. ...
- Agastopia. ...
- Halfpace. ...
- Impignorate. ...
- Jentacular. ...
- Nudiustertian.