(now rare) To be unfavourable to; to work against.

(idiomatic) In a very difficult position.

Unequivocally and intransigently opposed to.

In comparison to.

To think less of (someone) for (something they have done).

(idiomatic) To be disadvantageous to someone.

(figuratively) To discover or find something by accident. / (figuratively) To meet somebody by chance.

(transitive, idiomatic) To function as a liability (for someone); to put into a condition of disadvantage. / (transitive, idiomatic) To serve as evidence which casts doubt upon.

To prevent something unpleasant from happening.

simple past tense and past participle of stumble against