<span class="searchmatch">abstrusest</span> (rare) superlative form of abstruse: most abstruse substrates...
See also: Substrates substrates plural of substrate (health) The calorie dense nutrients including carbohydrates, proteins, and fats. <span class="searchmatch">abstrusest</span>...
Rhymes: -uːs abstruse (comparative abstruser or more abstruse, superlative <span class="searchmatch">abstrusest</span> or most abstruse) (formal) Difficult to comprehend or understand; obscure...
University-Press, for Tho[mas] Bennet, […], →OCLC, page 309, column 1: [T]h' <span class="searchmatch">abſtruſeſt</span> things / VVhich in the Mind's dark Temper nuzling lie, / By you expoſed...