asseveration

/əˌsɛvəˈreɪʃən/

noun

The solemn or emphatic declaration or statement of something.

I fear that you offer only unsupported asseveration

claim,assertion,declaration,statement,proclamation,contention,argument,affirmation,averment,avowal,attestation,testimony,certification,evidence,witness,charge,accusation,suggestion,implication,hint,insinuation,indication,intimation,imputation,plea,pretence,profession