Dictionary.net

• in a monotonous manner; "the history of the play throughout the latter part of the eighteenth century is monotonously uneventful"

2006 - WordNet 3.0
By Princeton University

• in a monotonous manner; "the history of the play throughout the latter part of the eighteenth century is monotonously uneventful"

2011 - English Dictionary Database
By DataStellar Co., Ltd