adverb
on the other hand, then again (variant spelling)
B1
andererseits: adverb meaning 'on the other hand' or 'then again'. Used to introduce a contrasting point or qualification, often sentence-initial. Functions as a conjunctive adverb; commonly paired with 'einerseits... andererseits'. Not reflexive or inflected. Spelling variant 'andererseits' is standard in German.
Examples
Sie wollte gehen; anderseits blieb sie noch eine Stunde, um zu helfen.
She wanted to leave; on the other hand, she stayed another hour to help.
Der Vorschlag war riskant, anderseits bot er Chancen, die nicht übersehen werden konnten, sodass man weiter diskutierte.
The proposal was risky; on the other hand it offered opportunities that could not be ignored, so people continued to discuss it.
Das ist eine Möglichkeit; anderseits gibt es noch bessere Lösungen.
That's one possibility; then again, there are better solutions.
Details
Mnemonics
imagine an old newspaper print where letters are sometimes dropped: 'andrerseits' reads like a historic variant
almost the same as 'andererseits' — drop the 'e' in the middle like a spelling variant
Notes
An alternative/older spelling variant of 'andererseits'. Meaning and usage are the same; the spelling without the 'e' is less common in modern usage.