A variant comparative form meaning 'more evil,' an alternative to 'eviler,' though both are non-standard compared to 'more evil.'
Variant formation of 'eviler,' adding '-er' to 'evil' with a possible doubling of the final '-l' (evilL-l-er), a practice more common in older English but less standard in modern usage. Both 'eviller' and 'eviler' are rare.
Double consonants before suffixes follow complex rules in English—sometimes they appear, sometimes they don't, and variant forms like 'eviller' vs. 'eviler' show that language communities often disagree on the 'right' way.
Complete word intelligence in one call. Free tier — 50 lookups/day.