Here is an extensive, if not definitive, list of adjectives that end in -ly, which can not be converted into adverbs – you have to find a ‘linguistic work round’.
| elderly friendly likely lovely unlikely silly leisurely miserly quarterly stately unsightly woolly |
ugly costly curly deadly unfriendly bodily manly northerly scholarly surly untimely holy |
chilly cowardly disorderly easterly ghastly grisly measly oily smelly timely westerly lively |
ghostly heavenly hilly homely jolly kindly melancholy orderly southerly unruly wobbly lonely |