extensive

US /ɪkˈsten.sɪv/
UK /ɪkˈsten.sɪv/
"extensive" picture
1.

covering a large area; great in amount or scale

:
•
The house has extensive gardens.
•
She has extensive knowledge of classical music.
:
widespreadfar-reachingbroadcomprehensivelarge-scale
:
extensionextensivelyhair extension