Final answer:
The adjectives in the provided sentence are 'aeronautical' and 'flight-worthy', which describe the type of research and the design, respectively.
Step-by-step explanation:
The student's question asks to identify the four adjectives in a given sentence without selecting any articles (a, an, or the). The sentence provided is "Between 1899 and 1905, Orville and Wilbur Wright carried out aeronautical research that finally culminated in a flight-worthy design. Since then, all airplanes have included aspects of that design." The adjectives in this sentence that describe nouns are aeronautical, which describes the type of research, and flight-worthy, which describes the design. Notably, these adjectives provide specific characteristics about the nouns they modify, painting a clearer picture in the reader's mind.