clear, marked, sharp, stark, startling, striking, strong
There is a stark contrast between the lives of the rich and those of the poor.

complete, direct

make, offer, provide
The fresh fruit provides a contrast to the rich chocolate pudding.

by ~
When you look at their new system, ours seems very old-fashioned by contrast.

in ~ (to/with)
The company lost $13 million this year, in contrast with a profit of $15 million last year.

~ between, ~ in
The contrast in appearance between the sisters was striking.

~ to
This busy social life was a complete contrast to his old quiet life.

stand in … contrast to sb/sth
Their attitudes towards love and marriage stand in stark contrast to those of their parents.

favourably, unfavourably
He contrasted her brashness unfavourably with his mother''s gentleness.

with

compare and contrast
Compare and contrast the two main characters in the play.

markedly, sharply, starkly, strikingly, strongly, vividly | nicely | oddly | favourably, unfavourably
The open approach contrasts favourably with the exclusivity of some universities.

with
This statement contrasts starkly with his previous statements.