Sunny

adj.joyful, hopefuleveryday

Meaning 1

Bright with direct sunlight or clear daylight.

Reach for it when describing weather, a place, or an appearance filled with light

They chose a sunny wall for the climbing roses.

everyday
bright
when abundant light matters without specifying its source
not when Artificial sources can create brightness without any sunshine.
professional
clear
when the absence of cloud is the weather fact to report
not when A clear winter day can be cold and lack sunny warmth.
literary
sunlit
when visible sunlight falls across a place or object
not when Sunlit describes a present lighting condition, not generally bright weather.

Cheerful, friendly, and inclined toward optimism.

Reach for it when praising a manner or outlook that brings warm good spirits

Her sunny patience reassured the nervous children.

playful
upbeat
when lively optimism suits an informal voice
not when Upbeat can feel performative where the warmth is quiet and natural.
everyday
cheerful
when an openly happy manner is the straightforward praise
not when Cheerful can be momentary, while sunny often suggests a disposition.
professional
optimistic
when positive expectations about the future are central
not when A sunny manner may comfort others without expressing any forecast.
formal
genial
when friendly warmth makes company pleasant
not when Genial emphasizes sociability more than bright good spirits.

sunny day
A sunny day brought the market back into the square.
sunny disposition
His sunny disposition made new volunteers feel welcome.
sunny outlook
A sunny outlook helped the team notice possibilities after the delay.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.