He was a free and unconstrained man with extraordinary talent.
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倜 almost never stands alone; it lives in the literary binome 倜傥 (free-spirited, dashing), famous from Sima Qian's letter describing 'extraordinary, unconventional people'. Seen in writing, not speech.
The person radical 亻 (side form of 人) marks 倜 as describing a kind of person — here a bold, unconventional character. Same radical as 傥, its usual partner.
周 on the right is the sound element, with a strong reading drift from zhōu to tì. It contributes no 'circuit' meaning here and works purely as the phonetic tag for this person-describing word.
