careful to choose only the best or most suitable
चयनात्मक, सोच-समझकर चुनने वाला
Usage
Top colleges are highly selective about admissions.
Be selective about what you read before the exam.
Common mistake
She is very selected about her friends.
She is very selective about her friends.
Selected means chosen; selective means careful in choosing.
Remember: Selective = picks only the best.