non-conclusive

adjective

1. serving to settle or decide a question; decisive; convincing: conclusive evidence.
2. tending to terminate; closing.

adjective

1. putting an end to doubt; decisive; final
2. approaching or involving an end or conclusion

adj.1610s, “occurring at the end,” from French conclusif, from Late Latin conclusivus, from conclus-, past participle stem of concludere (see conclude). Meaning “definitive, decisive, convincing” (putting an end to debate) is from 1640s. Related: Conclusiveness.