Extremely
Pronunciation : Ex*treme"ly
Part of Speech : adv.
Definition : Defn: In an extreme manner or state; in the utmost degree; to the utmost point; exceedingly; as, extremely hot or cold.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder