Durable describes people or things that last, or remain strong and in good condition over a long period of time. It is often used figuratively, as in "a durable athlete."

// The fabric was durable enough to withstand chewing from the family dog.

// She is one of Hollywood's most durable stars.

Acumen refers to keenness and depth of perception, discernment, or discrimination—in other words, the ability to think clearly and make good decisions, especially in practical matters.

// The fictional detective possesses a superior acumen that enables her to solve the most bizarre and puzzling of mysteries.

Reifying is about considering or representing something abstract as a material or concrete thing. If you reify a concept or idea you somehow give it definite content and form.

// The tense personal dynamic between the two musicians was reified by the dissonant yet captivating music they made together.

Balayage is a technique by which a colorist creates highlights or lowlights in a person's hair by painting freehand using long, sweeping strokes. Balayage may also refer to the highlights or lowlights produced by this technique.

// The stylist was lauded for his skill in balayage.

// The monotone dress perfectly complemented her ombré balayage.

Capricious is a formal word that describes someone or something governed or characterized by impulsivity or unpredictability.

// The employees were at the mercy of a capricious manager who always seemed to impose deadlines at the last minute.

A glade is a grassy open space in a forest.

// She felt the most at ease outdoors, often taking delight in the peaceful glades she came across on her hikes.

Extemporaneous describes something that is made up or done without special preparation. It is usually used to describe public speaking.

// Now a seasoned professional, Abby is no longer unnerved when asked to make the occasional extemporaneous speech.

Midriff refers to the area around a person’s middle, that is, the front of their body between the chest and the waist.

// Even the store’s winter line of clothing includes a number of midriff-baring tops, albeit paired with oversized cardigans or flannel shirts.