adverbdobhriathar1speak, argue etc'I don't how it happened', he explained unconvincingly.'Níl a fhios agam conas a tharla sé,' a mhínigh sé go hamhrasach.2portray, play part etcar bhealach dochreidtethe film's ending plays out unconvincinglytá deireadh áiféiseach ar an scannán3to implausible degreehis explanation is unconvincingly complicatedtá an míniú a thug sé chomh casta sin gur deacair é a chreidiúint