Happy or sad ?

Adjectives

bleak

blissfully happy

broken-hearted

cheerful

cheerless

dejected

delighted

depressed

depressing

desolate

despondent

dismal

down

downcast

dreary

ecstatic

elated

feel blue

glad

gloomy

glum

heartbroken

homesick

idyllic

inconsolable

joyful

jubilant

low

miserable

morose

overjoyed

pleased

radiant

sorrowful

thrilled

unhappy

wistful

Expressions

be in a good mood

be on top of the world

be over the moon

be with a heavy heart

break somebody's heart

drive somebody to despair

feel sorry for oneself

Verbs

to brighten up

to cheer up

to depress

to grieve

to make somebody's day

to sadden

to upset

Nouns

bliss

contentment

delight

depression

despondency

elation

gloom

grief

heartache

joy

misery

sorrow

unhappiness