ACT Vocab: Units 20-21

Front

acumen

Back

ability to discern or discriminate; shrewdness

Front

Concurrent:

Back

Happening at the same time.

Front

erroneous

Back

incorrect; mistaken

Front

impasse

Back

a problem or predicament with no obvious resolution

Front

irrevocable

Back

impossible to retract or revoke; irreversible

Front

malodorous

Back

having an offensive odor

Front

nanotechnology

Back

use of single atoms and molecules to construct microscopic devices

Front

Negligible

Back

Of little importance; insignificant.

Front

notarize

Back

to certify legally

Front

piquant

Back

a strong, stimulating taste