Iceberg and Unflappable

Iceberg noun - A cold aloof person.

Unflappable and iceberg are semantically related. in unfeeling topic. In some cases you can use "Unflappable" instead an adjective "Iceberg".

Unflappable adjective - Not easily panicked or upset.

Iceberg and unflappable are semantically related. Sometimes you can use "Iceberg" instead an adjective "Unflappable".