General Brazilian
exigente; chato; irritado
Most common term; 'chato' and 'irritado' used for fussy/fretful behavior
Rio de Janeiro
exigente; piranha (informal)
'Piranha' is informal/slang for someone very picky
São Paulo
exigente; chatice
'Chatice' refers to the quality of being annoying/fussy
Portugal
exigente; pousado; meticuloso
'Pousado' can mean fussy about comfort; more formal vocabulary preferred