Adaptive user equipment capability reporting is disclosed. Continuing increases in the number of radio access technologies and more granular division of radio spectrum can result in a conventional user equipment capability report exceeding a threshold size, such as a threshold size set by a standards organization. In response, a conventional user equipment capability report can be truncated, which can result in loss of valuable user equipment capability information. The disclosed subject matter provides for generating an adapted user equipment capability report that can be smaller than the conventional user equipment capability reports in response to receiving an oversize user equipment capability report. The adapted user equipment capability report can intelligently comprise a preferred user equipment capability and can segregate reported capabilities by radio access technology. This can avoid loss of user equipment capability information corresponding to the preferred user equipment capability comprised in the adapted user equipment capability report.