unyieldingly β unable to bend or be penetrated under pressure; hard: trees so unyielding that they broke in the harsh north winds.
adamantly β utterly unyielding in attitude or opinion in spite of all appeals, urgings, etc.
immovably β incapable of being moved; fixed; stationary.
decisively β having the power or quality of deciding; putting an end to controversy; crucial or most important: Your argument was the decisive one.
doggedly β persistent in effort; stubbornly tenacious: a dogged worker.
persistently β persisting, especially in spite of opposition, obstacles, discouragement, etc.; persevering: a most annoyingly persistent young man.
resolutely β firmly resolved or determined; set in purpose or opinion: Her parents wanted her to marry, but she was focused on her education and remained resolute.
staunchly β firm or steadfast in principle, adherence, loyalty, etc., as a person: a staunch Republican; a staunch friend.
steadfastly β fixed in direction; steadily directed: a steadfast gaze.
strictly β in a strict manner; rigorously; stringently: strictly enforced.
tenaciously β holding fast; characterized by keeping a firm hold (often followed by of): a tenacious grip on my arm; tenacious of old habits.
unwaveringly β to sway to and fro; flutter: Foliage wavers in the breeze.
constantly β not changing or varying; uniform; regular; invariable: All conditions during the three experiments were constant.
indefatigably β In an extremely persistent and untiring manner; in an indefatigable manner.
intently β firmly or steadfastly fixed or directed, as the eyes or mind: an intent gaze.
perseveringly β displaying perseverance; resolutely persistent; steadfast: a persevering student.
pertinaciously β holding tenaciously to a purpose, course of action, or opinion; resolute.
resolved β firm in purpose or intent; determined.
amenability β ready or willing to answer, act, agree, or yield; open to influence, persuasion, or advice; agreeable; submissive; tractable: an amenable servant.
unflinchingly β not flinching; unshrinking: unflinching courage.
unreasonably β not reasonable or rational; acting at variance with or contrary to reason; not guided by reason or sound judgment; irrational: an unreasonable person.
unreasoning β not reasoning or exercising reason; reasonless; thoughtless; irrational: an unreasoning fanatic.
unrelenting β not relenting; not yielding or swerving in determination or resolution, as of or from opinions, convictions, ambitions, ideals, etc.; inflexible: an unrelenting opponent of the Equal Rights Amendment.
willfully β deliberate, voluntary, or intentional: The coroner ruled the death willful murder.