take a firm line (on or against something)(redirected from take a firm line against)
take a firm line (on or against something)
To publicly assert one's opinion or defense of or opposition to something without relenting. I know voicing my opinion on this legislation may put my job in jeopardy, but it's time to take a firm line against these discriminatory hiring practices. Though an unpopular opinion, the principal took a firm line on keeping classes separated by gender.