The word "straiter" means someone who is strict, austere or constrained. Some synonyms for this word include narrow-minded, rigid, uncompromising and inflexible. These words are often used to describe people who hold very strong opinions and are not willing to consider alternative viewpoints or ideas. Other synonyms for "straiter" include stern, solemn, severe and unyielding. When used to describe someone's character, these words can help to convey a sense of intensity and seriousness. Overall, there are many synonyms for "straiter" that can be used to describe people who are disciplined, focused and uncompromising in their beliefs and actions.