imperfect
🇺🇸
/ɪmˈpɜːrfɪkt/
🇬🇧
/ɪmˈpɜːfɪkt/
not perfect; having flaws or mistakes
The vase was imperfect because it had a small crack.
a verb form showing ongoing past action
The imperfect tense describes actions that were happening in the past.