inconclusive
adjective /ˌɪnkənˈkluːsɪv/
  /ˌɪnkənˈkluːsɪv/
 - not leading to a definite decision or result
- inconclusive evidence/results/tests
 - inconclusive discussions
 - A coalition government was formed following an inconclusive general election.
 - The volume ends on a somewhat inconclusive note.
 - the curiously inconclusive finish to the symphony
 
Oxford Collocations Dictionaryverbs- be
 - prove
 - remain
 - …
 
- largely
 - rather
 - somewhat
 - …