Definitions

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

But then it's finished "and there's a bit of baby blues afterwards," as she comes down off the adrenaline rush.

From Barron's • Feb. 18, 2026

Stoecker, who finished fifth in the women's skeleton finals on Saturday, also told Radio 4's Today programme that the circus had definitely prepared her for the "adrenaline" of skeleton.

From BBC • Feb. 16, 2026

“I think the adrenaline takes over a little bit,” said downhill racer Kajsa Vickhoff Lie of Norway.

From Los Angeles Times • Feb. 13, 2026

Part challenge, part analysis, the thrill of adrenaline and focus.

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith