When describing something as "more suffocating", there are a number of synonyms that can be used to convey the feeling of being trapped or overwhelmed. Some possible options include "oppressive", "confining", "claustrophobic", "choking", "stifling", "smothering", "strangling", "crushing", and "cloying". These words all evoke a sense of being restricted or constrained, whether by physical space, social pressure, emotional turmoil, or other stressors. They can be useful in expressing a range of emotions and experiences, from anxiety and frustration to despair and hopelessness. By choosing the right synonym, you can convey a more nuanced and precise message to your audience.