adrenaline

[uh-dren-l-in, -een] / əˈdrɛn l ɪn, -ˌin /

NOUN

state of excitement

Synonyms

STRONGEST

epinephrine

STRONG

caffeine morphine

WEAK

anxiety stress

Antonyms

STRONGEST

calm

WEAK

relaxation

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.

Several times while training for Ironman triathlons, I’ve crashed my bike and jumped right back up—there was so much adrenaline flowing that I didn’t feel pain in the moment.

From The Wall Street Journal • Mar. 1, 2026

It delivers a shot of adrenaline, while a snakebite pen could inject heparin.

From BBC • Feb. 7, 2026

He then will try to get back to sleep to prepare for his long day of football, knowing he will be running on adrenaline deep into the night.

From Los Angeles Times • Feb. 6, 2026

But when it comes to Bitcoin, well-considered investment rationales have a way of taking a back seat to greed, fear, and adrenaline.

From Barron's • Feb. 5, 2026

I turned, tried to run, adrenaline kicking into my joints like electricity.

From "The Marrow Thieves" by Cherie Dimaline