Noah Webster's New International Dictionary of the English Language

1. (a.) Acting in a contrary direction; opposed; as, adverse winds; adverse conditions; a spirit adverse to distinctions of caste.

2. (a.) Opposite.

3. (a.) In hostile opposition to; unfavorable; unpropitious; contrary to one's wishes; unfortunate; calamitous; afflictive; hurtful; as, adverse fates, adverse circumstances, things adverse.

4. (v. t.) To oppose; to resist.