durably

adverb
UK /ˈdjʊərəbli/
US /ˈdʊrəbli/

In a way that lasts a long time without breaking.

The bridge was durably built to stand for a hundred years.


OTHER MEANINGS

2. In a way that keeps going strong without wearing out.

The battery durably powered the toy for weeks.

3. In a way that holds up well against damage or hard use.

The backpack was durably stitched for long hikes.

4. In a way that continues to exist for a long time.

Their friendship durably survived many moves and changes.