indefectible

From in- + defect + -ible.

• IPA^(key): /ɪndɪˈfɛktɪbəl/

indefectible (comparative more indefectible, superlative most indefectible)

1. Having the ability to resist defect or failure, permanent, lasting.

   Synonym: enduring

2. Without flaw or defect, perfect.

   Synonym: flawless

indefectible m or f (masculine and feminine plural indefectibles)

1. unfailing

• IPA^(key): /indefeɡˈtible/ [ĩn̪.d̪e.feɣ̞ˈt̪i.β̞le]
• Rhymes: -ible
• Syllabification: in‧de‧fec‧ti‧ble

indefectible m or f (masculine and feminine plural indefectibles)

1. unswerving, resolute

• “indefectible”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025