Ho-hum and Unsensational

Ho-hum adjective - Causing weariness, restlessness, or lack of interest.

Unsensational and ho-hum are semantically related. In some cases you can use "Unsensational" instead an adjective phrase "Ho-hum".

Unsensational adjective - Not of such character as to arouse intense interest, curiosity, or emotional reaction.

Ho-hum and unsensational are semantically related. You can use "Ho-hum" instead an adjective "Unsensational".