Cryptocarya bellendenkerana is a rainforest tree that typically grows to a height of, its stems sometimes buttressed. Its leaves are lance-shaped to egg-shaped, long and wide on a petiole long. The flowers are arranged in panicles shorter than the leaves and sometimes have an unpleasant odour. The tepals are long, the outer anthers long and wide, the inner anthers long and wide. Flowering mostly occurs from September to January, and the fruit is a spherical black drupe long and wide.