| Main Entry: | indefatigable |
| Part of Speech: | adjective |
| Definition: | untiring |
Synonyms: |
active, assiduous, bound and determined, dead set on, determined, diligent, dogged, energetic, hell-bent, industrious, inexhaustible, ironclad, nose to grindstone, painstaking, patient, persevering, persistent, pertinacious, relentless, sedulous, steadfast, stop at nothing, strenuous, tireless, unfaltering, unflagging, unflinching, unremitting, unwavering, unwearied, unwearying, vigorous |
Antonyms: |
fatigued, tired, weary |
| Main Entry: | relentless |
| Part of Speech: | adjective |
| Definition: | cruel, merciless |
Synonyms: |
adamant, bound, bound and determined, dead set on, determined, dogged, ferocious, fierce, go for broke, grim, hang in, hang-tough, hard, harsh, implacable, inexorable, inflexible, inhuman, mortal, obdurate, pitiless, remorseless, rigid, rigorous, ruthless, single-minded, stiff, stop at nothing, strict, stringent, unappeasable, unbending, uncompromising, undeviating, unflinching, unforgiving, unrelenting, unstoppable, unyielding, vindictive |
Antonyms: |
kind, merciful, sympathetic, understanding |
| Main Entry: | unprincipled |
| Part of Speech: | adjective |
| Definition: | corrupt |
Synonyms: |
abandoned, amoral, bent*, cheating, conscienceless, crooked, deceitful, devious, dirty-dealing, dishonest, dissolute, double-crossing, double-dealing, immoral, licentious, mercentary, praetorian, profligate, reprobate, shady, sly, stop-at-nothing, tricky, two-faced, two-timing, unconscionable, underhand, unethical, unprofessional, unscrupulous, venal, wanton |
Antonyms: |
ethical, moral, principled |