imperfect /ɪmˈpɜrfɪkt/ /ɪmˈpɜːfɪkt/
deficient
defective /dɪˈfɛktɪv/ /dɪˈfɛktɪv/
incomplete /ˌɪnkəmˈpliːt/ /ˌɪnkəmˈpliːt/
unfinished /ʌnˈfɪnɪʃt/ /ʌnˈfɪnɪʃt/