simple past tense and past participle of stumble

to discover or find something by accident / to meet somebody by chance

prone to stumble

plural of stumbling

Third-person singular simple present indicative form of stumble on

A fall, trip or substantial misstep. / An error or blunder. / A clumsy walk.

(intransitive) To trip or fall; to walk clumsily. / (intransitive) To make a mistake or have trouble. / (transitive) To cause to stumble or trip.

present participle and gerund of stumble

The motion of one who stumbles.

Third-person singular simple present indicative form of stumble