Dictionary.com
Thesaurus.com
Synonyms

highly

American  
[hahy-lee] / ˈhaɪ li /

adverb

  1. in or to a high degree; extremely.

    highly amusing; highly seasoned food.

  2. with high appreciation or praise; admiringly.

    to speak highly of a person.

  3. more than adequately; generously.

    a highly paid consultant.
highly British  
/ ˈhaɪlɪ /

adverb

  1. (intensifier)

    highly pleased

    highly disappointed

  2. with great approbation or favour

    we spoke highly of it

  3. in a high position

    placed highly in class

  4. at or for a high price or cost

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of highly

First recorded before 900; Middle English heihliche, Old English hēalīce; equivalent to high + -ly

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.