Like repetitive work, relationships that become bland and monotonous are undesirable. The concealment of their faces emphasizes the dehumanizing nature of their monotonous, repetitive labor. They found life quite monotonous, with the fish and vegetable diet boring. As a character actor he is well known for his droning, monotonous delivery. Some exercisers find interval training less monotonous than continuous-intensity exercise. The voicework has also been criticized for sometimes being unemotional and equally monotonous. Most female country music vocalists stand motionless, sing with monotonous high-pitched nasal twang. Robots can be constructed to complete the more monotonous tasks. Does Han Solo really understand Chew's monotonous noises? Service on Flowers in the North Atlantic was typically cold, wet, monotonous and uncomfortable. His normal language is flat and monotonous. This helped to enliven large, otherwise monotonous, walls. The problem worsened when some already monotonous apartment blocks degenerated into slums. These were enticing and appeared to be a delicious change to a monotonous seafaring diet. He also felt that the drums looping around the track made it a "bit monotonous".