beautiful, elegant, gorgeous
plain, simple
She looked elegant in a simple black dress.

ankle-length, floor-length, full-length, knee-length, long
short
skimpy
clinging, figure-hugging (esp. BrE), skintight, tight, tight-fitting
loose-fitting, shapeless
backless, halter (AmE), low-cut, off-the-shoulder, revealing, sleeveless, strapless
flowing, silky, slinky
floral, flowered (esp. AmE), flowery, frilly, sequinned/sequined, sparkly
cotton, silk, etc.
designer, fancy (AmE)
ball, cocktail, evening, party, prom (AmE)
bridesmaid (AmE), bridesmaid's (esp. BrE), wedding
communion
Easter
maternity

unzip, zip, zip up
hitch up, lift, pull up
She hitched up her long dress so it wouldn't drag in the mud.

pull down
smooth, straighten
She sat down and smoothed her dress over her legs.

go with, match
The hat went with her new dress wonderfully.

rip, ruin, tear

shop
designer
size

in a/the dress
She appeared in a slinky satin dress.

ceremonial, formal
casual, informal
evening
modern
period
national, traditional
He was wearing traditional Scottish dress.

fancy (= clothes that make you appear to be a different character)
the costumes worn at the fancy-dress ball
a fancy-dress shop

battle, military
civilian

code
The club has a strict dress code.

sense
He has poor dress sense.

coat (AmE), pants (AmE), shirt, shoes (AmE), suit
uniform
in full dress uniform

in … dress
a performance of ‘Hamlet’ in modern dress

hurriedly, quickly
slowly
carefully

in
He dressed carefully in the brown suit he had been married in.

be fully dressed
She lay down on her bed, fully dressed.

get dressed
She got dressed quickly.

beautifully, elegantly, fashionably, immaculately, impeccably, nattily (old-fashioned), neatly, nicely, smartly (esp. BrE), stylishly, well
Susan always dresses very elegantly.
She was determined to be the best dressed woman at the wedding.

badly, poorly, shabbily
appropriately, suitably
inappropriately
decently, modestly, properly
conservatively, plainly, simply, soberly
professionally (esp. AmE)
She was dressed professionally in a business suit.

formally
casually
expensively
flamboyantly, ostentatiously, richly
provocatively, scantily
warmly
alike, identically, similarly
The twins were dressed identically.

differently
She began to act and dress differently.

as
The waiters were dressed as clowns.

for
I have to dress smartly for work.

in
The women were all dressed in blue skirts and white blouses.

like
Why does she always dress like a boy?

dress to the nines (esp. AmE), dress up to the nines (BrE)
She always dresses (up) to the nines.

Dress is used with these nouns as the object:
cut, salad, timber, wound