ブラウザの設定でJava Scriptの使用を有効にしてご利用ください。
出典:Wiktionary
From Middle English undedly, undeedly, undedlich, from 古期英語 undēadlīc (“immortal, for all eternity”), equivalent to undead + -ly.
undeadly (not comparable)
undeadly (comparative more undeadly, superlative most undeadly)
From un- + deadly.
undeadly