% arara: pdflatex % arara: makeglossaries % arara: pdflatex \documentclass{article} \usepackage{etoolbox} \usepackage [ indexcrossrefs=false% cross-ref indexing performed explicitly ] {glossaries-extra} \makeglossaries % Keep a list of entries that have been indexed \newcommand*{\indexedlist}{} \renewcommand*{\glsxtrdowrglossaryhook}[1]{% \xifinlist{#1}{\indexedlist}{}{\listxadd{\indexedlist}{#1}}% } \newglossaryentry{sample1}{name={sample 1},description={an example}} \newglossaryentry{sample2}{name={sample 2},description={an example},see={sample1}} \newglossaryentry{sample3}{name={sample 3},description={an example},see={sample2}} \newglossaryentry{sample4}{name={sample 4},description={an example}} \begin{document} This is sample document. \gls{sample3}. \printglossaries % index all the cross-referenced entries that haven't been used: \glsxtraddallcrossrefs Entries that haven't been indexed: \forglsentries{\thislabel}{\xifinlist{\thislabel}{\indexedlist}{}{\space\thislabel}}. \end{document}