英和和英

a cause of happiness, enjoyment or satisfaction

in a joyous manner

delightful

to behave in an easy manner

entertain someone

having a fun

have an enjoyable time

made joyful

the state of having a relaxing, good time

a state of being delightful

to do one's work with pleasure

the state of being pleasant and enjoyable

I am depressed in spirits―in low spirits―in the dumps―in the dismals―in the doldrums―in the blues―I have a fit of the blues.

I'm having a fun.

We are having a good time.

the act of relaxing and enjoying oneself

Fun things

the state of being pleasurable

have a pleasant experience

in a joyless manner

The pleasure lies in the pursuit.

to have a relaxing, good time

the act of taking pleasure in something and enjoying oneself

both the joys and sorrows of life

to take one's ease―live at one's ease―live a life of ease

pleasantly occupied

to delight in―take delight in―take pleasure in―something

in a very pleasurable manner

a condition of being happy and in good spirits

It is full of interest―replete with interest.