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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Implacable:

IMPLACABLE: Relentless.
ADAMANT: Implacable
DEADLY: Implacable.
SET: Implacable.
STERN: Implacable
FROZENSTIFF: Implacable bum?