From sen- (“without”) +‎ partio (“political party”) +‎ -a.

• IPA^(key): /senparˈtia/
• Rhymes: -ia
• Syllabification: sen‧par‧ti‧a
• Hyphenation: sen‧partia

senpartia (accusative singular senpartian, plural senpartiaj, accusative plural senpartiajn)

1. (politics) independent (not affiliated with a political party)