1.adjectival nouns or quasi-adjectives (keiyodoshi); adverb (fukushi)
extremely angry; furious; enraged
2.adverb (fukushi); adverb taking the 'to' particle
fiercely (shine); blazingly; intensely
3.adverb (fukushi); adverb taking the 'to' particle
merrily (burn away); red-hot
4.adverb (fukushi); adverb taking the 'to' particle
with a clang