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Definitions

like mad

ADJECTIVE
fast
Synonyms
STRONGEST
agile brisk hot nimble quick rapid swift
STRONG
accelerated active dashing electric flashing fleet fleeting flying hurried racing ready snap split-second winged
WEAK
PDQ blue streak breakneck double-time expeditious expeditive hairtrigger hasty hypersonic in a jiffy in nothing flat lickety split like a bat out of hell like all get out like crazy on the double posthaste presto pronto screamin' snappy speedball supersonic velocious
Antonyms
STRONGEST
clumsy slow
STRONG
dull
WEAK
plodding tardy unhurried
ADJECTIVE
madly
Synonyms
STRONGEST
crazily desperately energetically excitedly foolishly frantically furiously hastily hysterically intensely passionately recklessly tumultuously violently
STRONG
dementedly insanely
WEAK
absurdly deliriously devotedly distractedly exceedingly excessively extremely frenziedly hard hurriedly irrationally ludicrously nonsensically psychotically quickly rabidly rapidly rashly senselessly something fierce speedily stormily to distraction turbulently unreasonably
Antonyms
WEAK
calmly normally
ADJECTIVE
swift
Synonyms
STRONGEST
abrupt expeditious hasty nimble quick rapid speedy sudden unexpected
STRONG
cracking express fleet flying precipitate prompt ready screaming short spanking
WEAK
alacritous barrelling breakneck double-quick fleet-footed headlong hurried in nothing flat like crazy on the double pronto shaking a leg short-lived snappy speedball supersonic winged
Antonyms
STRONGEST
delayed expected lazy leisurely slow
WEAK
sluggish
ADVERB
desperately
Synonyms
STRONGEST
badly dangerously fiercely greatly perilously seriously
WEAK
carelessly dramatically gravely harmfully hysterically like crazy
Antonyms
STRONGEST
mildly
WEAK
calmly easily trivially

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Tallow is not currently FDA-approved for topical use and may come with risks, especially if it’s sourced from cows with certain health conditions and diseases, like mad cow disease.

From Salon • Jan. 25, 2025

Mahomes celebrated winning by sprinting like mad into the end zone.

From Seattle Times • Feb. 11, 2024

Hotels, airlines and medical clinics all are hiring like mad.

From Washington Post • Feb. 6, 2023

"One section of the audience is just going to be shouting like mad."

From BBC • Feb. 3, 2023

Taking one last lunge for the flag, Louie snagged the edge and fell to the pavement, tearing the banner down with him, then scrambled to his feet and ran like mad.

From "Unbroken" by Laura Hillenbrand

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.