fussy

adjective
UK /ˈfʌsi/
US /ˈfʌsi/

Someone who is fussy only likes things done a certain way and complains a lot.

The fussy baby would not eat the mashed carrots.


OTHER MEANINGS

2. Full of unnecessary decoration or detail.

She wore a fussy dress with too many ribbons.

3. Hard to please about food or comfort.

My fussy cat refuses to sleep anywhere but my bed.

4. Needing a lot of care and attention.

The fussy old car breaks down every week.