Abandoned, Acquiescent, Active, Afire, Ardent, Assiduous, Burning, Committed, Compliant, Complying, Conforming, Conscientious, Consistent, Constant, Continuing, Dedicated, Dependable, Devoted, Devout, Diligent, Dogged, Dutiful, Earnest, Enduring, Faithful, Fervent, Fervid, Fiery, Firm, Fixed, Flaming, Flinty, Hearty, Heated, Hot, Immovable, Immutable, Impassioned, Indefatigable, Indomitable, Industrious, Inflexible, Insistent, Intense, Intent, Invincible, Lasting, Meticulous, Mindful, Obedient, Observant, Obstinate, Passionate, Patient, Patriotic, Permanent, Persevering, Persistent, Persisting, Pertinacious, Plodding, Plugging, Preoccupied, Punctilious, Punctual, Rapt, Relentless, Reliable, Resolute, Scrupulous, Serious, Set, Settled, Sincere, Sleepless, Slogging, Sot, Spirited, Stable, Staunch, Steadfast, Steady, Steely, Stubborn, Submissive, Tenacious, Tireless, True, Trusted, Trustworthy, Trusty, Unbending, Unconquerable, Undaunted, Unfailing, Unflagging, Unflinching, Uninterrupted, Unrelenting, Unremitting, Unshaken, Unswerving, Untiring, Unwavering, Unwearied, Unyielding, Vehement, Warm, Willing, Zealous