mis pronounce (verb) slur: mumble words
Sinonime: determined,
firm,
fixed, hanging tough, hard-nosed, immovable,
inexorable,
inflexible,
insistent,
intransigent,
obdurate, pat,
relentless, resolute,
rigid,
set, set in stone, standing pat,
stiff,
stubborn, unbendable, unbending,
uncompromising, unrelenting, unshakable, unswayable
Antonime: flexible, pliant,
submissive,
yielding