look on the bright side Definition

bright
adj brighter, brightest

1. Giving out or shining with much light.

Thesaurus: shining, gleaming, glittering, blazing, sparkling, effulgent, illuminated, dazzling, phosphorescent; Antonym: dull, clouded.
2. Said of a colour: strong, light and clear.
3. Lively; cheerful.
4. colloq
Clever and quick to learn.
Example: He's a bright boy, especially at maths
Thesaurus: intelligent, clever, astute, keen, lucid, observant, perceptive, perspicacious, quick-witted.
5. Full of hope or promise.

Example: a bright future
Thesaurus: promising, auspicious, propitious, hopeful, encouraging, rosy, favourable, excellent.

adverb

1. literary
Brightly.
Example: a fire burning bright

Derivative: brightly
adverb

Derivative: brightness
noun

Idiom: as bright as a button

colloq
Said especially of a child: very intelligent and alert.

Idiom: bright and early

Very early in the morning; in good time.

Idiom: look on the bright side

To be hopeful and consider the best features of something.

Etymology: Anglo-Saxon beorht or byrht.