To oppose.
Being or acting in a contrary direction; opposed or opposing in position or course; opposite; confronting: most commonly used of hurtful or hostile opposedness, but sometimes of mere opposition in space.
Antagonistic in purpose or effect; opposite; hostile; inimical: as, an adverse party; adverse criticism.
Opposing desire; contrary to the wishes or to supposed good; hence, unfortunate; calamitous; unprosperous: as, adverse fate or circumstances.
In botany, turned toward the axis: the opposite of averse, but rarely used. See anatropous.
Averse, Inimical, etc. See hostile.
Unfortunate, unlucky, calamitous, untoward, disastrous.