Not of great significance or importance; minor, trivial, or irrelevant.
example
Der Preisunterschied zwischen den beiden Produkten ist so unwesentlich, dass er keine Rolle spielt.
The price difference between the two products is so insignificant that it doesn't matter.
Usage tips
Word structure
The word is made up of three parts: the prefix 'un-' (not), the word stem 'Wesen' (essence, core), and the suffix '-lich'. 'Unwesentlich' (insignificant) therefore literally means 'not belonging to the essence' or 'not essential'.
EXAMPLE
Konzentrieren wir uns auf die wichtigen Punkte und lassen wir die unwesentlichen Details weg.
Let's focus on the important points and leave out the insignificant details.
Die Änderung im neuen Vertrag war nur unwesentlich.
The change in the new contract was only insignificant.
Sentence structure and usage
You can use 'unwesentlich' (insignificant) as an adjective before a noun or as an adverb to describe a verb or adjective. As an adverb, it means 'only slightly' or 'barely noticeably'.
EXAMPLE
Das ist ein eher unwesentlicher Punkt in unserer Diskussion.
That is a rather insignificant point in our discussion.
Compare with
antonym
unwesentlich vs wichtig
important
'wichtig' and 'unwesentlich' describe whether something has significance for a matter. Use 'wichtig' when a point must be taken into account or has an influence on the result. Use 'unwesentlich' when a detail is not decisive and can be left out or ignored. 'unwesentlich' often sounds a bit more objective than 'unwichtig' and fits well in plans, reports, or explanations. If a point changes the decision, it is 'wichtig'. If it does not change anything essential, it is 'unwesentlich'.
unwesentlich
Für die Entscheidung ist der genaue Preisunterschied unwesentlich.
The exact price difference is insignificant for the decision.
wichtig
Für die Veranstaltung im Garten ist gutes Wetter wichtig.
Good weather is important for the event in the garden.