Fast relentless Synonyms

Definitions for Fast

(adjective) moving, proceeding, or acting with great speed
(adjective) firm in one's allegiance to someone or something
(adjective) firmly positioned in place and difficult to dislodge

Synonyms for phrase

FR abbreviation

FR is an abbreviation for Fast Relentless

What does FR stand for?

FR stands for "Fast Relentless"

Relentless replaced

Definitions for Relentless

(adjective) showing no signs of slackening or yielding in one's purpose
(adjective) never-ceasing
(adjective) not to be placated or appeased or moved by entreaty