[syn: persistent, relentless, unrelenting]
The Collaborative International Dictionary of English v.0.48:
Unrelenting \Un`re*lent"ing\, a.
Not relenting; unyielding; rigid; hard; stern; cruel. --
Un`re*lent"ing*ly, adv. -- Un`re*lent"ing*ness, n.
[1913 Webster]
WordNet (r) 3.0 (2006):
unrelenting
adj 1: not to be placated or appeased or moved by entreaty;
"grim determination"; "grim necessity"; "Russia's final
hour, it seemed, approached with inexorable certainty";
"relentless persecution"; "the stern demands of
parenthood" [syn: grim, inexorable, relentless,
stern, unappeasable, unforgiving, unrelenting]
2: harsh; "the brutal summer sun"; "a brutal winter" [syn:
brutal, unrelenting]
3: never-ceasing; "the relentless beat of the drums" [syn:
persistent, relentless, unrelenting]