to say that one is not satisfied, that something is wrong, that one is suffering

grumble about

a complaint or protest

complain

an expression of grief; a song or poem expressing grief

to mourn or grieve deeply

to lose, be without, energy, health or happiness (during one's time in a place)

droop; become dull, listless

to go about feeling sad or in low spirits

pout, be dejected

a bicycle fitted with a small petrol engine

pout, be dejected

to feel, show, sorrow or regret

be sad over loss

to cry or complain about something in a loud voice

cry loudly