As a Verb or Adjective: 1. To have a very great natural ability and talent, especially for a particular subject or activity; to be very clever. English = (be) brilliant. Note: 1. Most younger signers use this as an everyday Auslan sign, but some older signers are more likely to use the other signs that match the key word ‘brilliant’, when they mean ‘very clever’, that are also listed here in Signbank.