adv
maniacally
muh-NEYE-uhk-lee
adv
1
In a wild, frenzied, or crazed manner.
"He grinned maniacally as the machine roared to life."
How to Use Maniacally
Learner’s notesIn plain EnglishDoing something in a crazed, frenzied way.
Word Forms
more maniacally comparative, most maniacally superlative
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He grinned _____ as the machine roared to life.
Etymology
Formed from maniacal plus the adverb suffix -ly.