persistent

Definitions

Continuing firmly or obstinately in a course of action in spite of difficulty or opposition.

Continuing to exist or endure over a prolonged period.

Examples

The persistent rain caused the river to overflow its banks.

She was persistent in her efforts to learn the piano despite the difficulty.

A persistent cough can sometimes be a sign of an underlying health issue.

Synonyms

determined tenacious persevering relentless steadfast dogged unwavering

Antonyms

irresolute fickle vacillating inconstant quitting wavering unsteady