猛然 もうぜん Meanings Adverb, たる-adjective fiercely; ferociously; furiously; resolutely Kanji 猛 fierce. Read as モウ. 然 -ly. Read as ゼン. Example sentences 犬が侵入者に猛然と吠えかかった。The dogs barked furiously at the intruder. Jinuma: Japanese Dictionary · Word lists