Aberrant and aberrated are synonyms for uncommon. Common is the opposite of uncommon. We have given below a collection of synonyms for "uncommon".
Rare and uncommon are subjective terms, meaning that any behaviour that is often not seen or experienced normally or that lacks accuracy can be called uncommon. Basically, something that is not uncommon, we put it in the common categories. It is often seen that many people know what is normal and what is abnormal. For example, this was not an uncommon reaction for us. That's the uncommon college we want. Lightning is not uncommon and is sometimes severe.