Lacking berries or unable to produce berries.
From 'berry' + '-less' (Old English suffix meaning without or lacking). This pattern of adding '-less' to create negative adjectives has been used in English for over 1,000 years to express absence or deprivation.
The '-less' suffix is English's way of saying 'without,' and it's so productive that speakers can create new words instantly—you could say something is 'juice-less' or 'hope-less,' and people immediately understand!
Complete word intelligence in one call. Free tier — 50 lookups/day.