Launchpad currently recommends translating aptitude in Ubuntu Bionic.

Template "aptitude" in Ubuntu Bionic package "aptitude"

Language Status Untranslated Need review Changed Last Edited By
Cherokee 100.00  100.0% untranslated 1582 1582 0 0
Dakota 100.00  100.0% untranslated 1582 1582 0 0
Hawaiian 100.00  100.0% untranslated 1582 1582 0 0
Inuktitut 100.00  100.0% untranslated 1582 1582 0 0
Lakota 100.00  100.0% untranslated 1582 1582 0 0
Ojibwe 100.00  100.0% untranslated 1582 1582 0 0
Spanish 000.00  100.0% translated 0 0 149 149 2018-02-17 08:53:37 UTC 2018-02-17 Rodrigo
Tlingit 100.00  100.0% untranslated 1582 1582 0 0
Yiddish 100.00  100.0% untranslated 1582 1582 0 0
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Key to this table: “Unchanged” means Translated
and “untranslated” means just that, Untranslated

Other versions of aptitude in Ubuntu