stiff, strict, rigid, inhuman
Persistent, unyielding, inexorable, insistent
cut-throat, aggressive, fierce, ruthless, relentless, antagonistic, pushing, opposing, vying, contentious, combative
continuous uninterrupted uninterrupted, constant, around-the-clock, unending, endless, interminable, ceaseless, steady, unbroken, relentless, never-ending, unceasing, incessant
relentless
The relentless boa eventually wrapped itself around the struggling goat.
He was relentless when it came to skateboarding.
The young girl was relentless.
Relentless Software was created in 2003.
Relentless EP was created in 2007.
Relentless Records was created in 1999.
The sailors struggled with the circuit as the wind seemed relentless.
America's forces are relentless in the pursuit of their enemies. The morning's drizzle became this afternoon's relentless downpour.