The term 'brownish' can refer to a variety of colors, including the five-letter words 'BROWN, ' 'TAWNY, ' 'taupe, ' and 'HAZEL, ' as well as the six-letter words 'BRONZE, ' 'RUSSET, ' and 'SORREL.' Additionally, the four-letter word 'ECRU, ' the three-letter word 'TAN, ' the five-letter word 'SEPIA, ' and the five-letter word 'UMBER' can all be used to describe shades of BROWN. Finally, the ten-letter word 'teacolored' is also a synonym for brownish.