Stramineous is an adjective that describes something that is straw-colored, yellowish-brown, or pale. The antonyms for this word can be identified based on color, such as black, white, or red, for example. Some other antonyms for stramineous could be dark, dusky, or deep. These words indicate a darker or richer hue than what is typically associated with stramineous. Other antonyms could include vivid, bright, or colorful, which would suggest a more vibrant or dynamic appearance. By considering these antonyms for stramineous, one can gain a greater understanding of the range of colors and tones in the English language.