critical (part of speech: adjective)
fastidious (part of speech: adjective)
Epicurean, picky, demanding, delicate, persnickety, careful, hypercritical, diligent, fussy, meticulous, rigorous, precise, prudish, discriminating, flawless, exacting, punctilious, discerning, scrupulous, proper, perspicacious, squeamish, dainty, critical, correct, priggish, particular, conscientious, severe, fastidious, accurate, prim, literal, mincing, methodical, qualmish, choosy
difficult (part of speech: adjective)
strenuous, ticklish, adverse, tight, rough, wearing, hard, formidable, burdensome, knotty, stressful, harsh, onerous, oppressive, trying, tricky, laborious, contrary, wearying, wearisome, grinding, arduous, uphill, bothersome, complex, cantankerous, troublesome, rugged, tough, difficult, cumbersome, thorny, complicated, toilsome
- " Oh, no," she said warmly, " there's nothing finicky about your garden- any more than there is about you. - "Love and Lucy", Maurice Henry Hewlett.
- And now I see all the smooth frauds, all the weak people who never have purposes or passions worthy of the name, all the finicky, finger- dusting gentry with the " fine souls," who flatter themselves that their timidity is the squeamishness of superior sensibilities- I see all these feeble folk fluttering their feeble fingers in horror of me. - "The Deluge", David Graham Phillips.
- Well, Carley, are you still finicky about the eats? - "The Call of the Canyon", Zane Grey.