(of a person) careful and choosing (and so difficult to please)

fussy, discriminating

(of a person) difficult to please; quick to find fault

very careful, meticulous

behaving with too much self-importance (especially by speaking with a false, aristocratic accent)

affected, pretentious

the smallest amount of

slightest, smallest

(liking to have everything) in good order, done carefully; cleverly said or done; (of wines and spirits) without water etc added

arranged well, uncluttered