Someone who's cheerful is spirited and happy. Your sister might be so cheerful that you hear her whistling joyfully first thing in the morning.

If you're full of good humor and optimism, your friends probably describe you as cheerful. A cheerful bus driver, restaurant server, or calculus teacher can brighten your whole day. Cheerful means "full of cheer," and cheer, which came to mean "good mood or spirit," started out in the 13th century meaning "the face," from the Late Latin cara, "face," and its Greek root, kara, "head."

Definitions of cheerful

adj being full of or promoting cheer; having or showing good spirits

“her cheerful nature”
“a cheerful greeting”
“a cheerful room”
“as cheerful as anyone confined to a hospital bed could be”
beaming, glad
cheerful and bright
beamish, smiling, twinkly
smiling with happiness or optimism
blithe, blithesome, light-hearted, lighthearted, lightsome
carefree and happy and lighthearted
buoyant, chirpy, perky
characterized by liveliness and lightheartedness
cheery, gay, sunny
bright and pleasant; promoting a feeling of cheer
chipper, debonair, debonaire, jaunty
having a cheerful, lively, and self-confident air
enjoying or showing or marked by joy or pleasure
showing or causing joy and pleasure; especially made happy
cheerless, depressing, uncheerful
causing sad feelings of gloom and inadequacy
blue, dark, dingy, disconsolate, dismal, drab, drear, dreary, gloomy, grim, sorry
causing dejection
melancholy, somber, sombre
grave or even gloomy in character
experiencing or marked by or causing sadness or sorrow or discontent
not experiencing or inspiring joy
show more antonyms...

adj pleasantly (even unrealistically) optimistic

pollyannaish, upbeat
expecting the best in this best of all possible worlds

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, can put you on the path to systematic vocabulary improvement.