up against (someone/something)

in opposition to someone or something.

In the music competition, Tyler was up against some of the best singers in the country.

Next week, our field hockey team will go up against the best team in this area.

• at first sight
• at full pelt
• at full steam
• at full stretch
• at full throttle
• at full tilt
• at hand
• at heart
• at heels
• a thick skin
• a thing of the past
• a thing or two
• a think-tank
• a thin line
• a thin skin
• a third wheel
• at home
• a thorn in someone's side
• a thorn in something's side
• a three-ring circus
• a tight-arse
• a tin ear
• a tin god
• at issue
• at knee