This is the 1901st most frequent German word.
wichtigste
Most important.
'Wichtigste' is used here as a noun derived from the adjective 'wichtig', indicating 'the most important thing'.
Das Wichtigste im Leben ist die Gesundheit.
The most important thing in life is health.
'Wichtigste' is used in its superlative adjective form, agreeing with the plural noun 'Aufgaben' ('tasks').
Sie konzentriert sich auf die wichtigsten Aufgaben zuerst.
She focuses on the most essential tasks first.
'Wichtigste' is used in its superlative adjective form, modifying the singular noun 'Hinweis' ('piece of advice').