Synonyms of single-minded

1 Syllable
firm, staunch, mule
2 Syllables
stubborn, seton, steely, mulish, artless, steadfast, steelier, dogged, rigid, hell-bent, hang-tough
3 Syllables
guileless, uncompliant, unyielding, persistent, tough-minded, relentless, strong-minded, obsessed, unbending
4 Syllables
undesigning, purposeful, unwavering, purposive, single-hearted, fanatical, inflexible, unbendable, never-failing, singleminded, determined, dedicated
5 Syllables
uncompromising, inalterable, inexorable, unadaptable, opinionated, unpermissive
6 Syllables
perseverative