quick off the mark

adj 0.830

quick on the draw

adj 0.788

quick-sighted

adj 0.710

sharp as a tack

adj 0.708

quick as a flash

adj 0.697

quick

adj 0.679

smart as a whip

adj 0.664

whip-smart

adj 0.648

astute

adj 0.638

nimble

adj 0.626

clued up

adj 0.613

shrewd

adj 0.613

sharpish

adj 0.612

perspicacious

adj 0.612

speedy

adj 0.607

caught on the hop

adj 0.606

perceptive

adj 0.606

clever

adj 0.604

lightning fast

adj 0.600

adroit

adj 0.598

fast

adj 0.590

percipient

adj 0.589

savvy

adj 0.582

heads up

adj 0.579

observant

adj 0.578

with-it

adj 0.575

expeditious

adj 0.574

swift

adj 0.572

witty

adj 0.572

heads-up

adj 0.571

quicksilver

adj 0.568

hawk-eyed

adj 0.568

rapid

adj 0.566

snappy

adj 0.562

agile

adj 0.558

smart

adj 0.558

brainy

adj 0.556

quick-tempered

adj 0.554

keen

adj 0.553

au courant

adj 0.551

clued in

adj 0.548

light-fingered

adj 0.548

intelligent

adj 0.548

slow off the mark

adj 0.545

quick-setting

adj 0.544

forehanded

adj 0.543

keen as mustard

adj 0.543

all ears

adj 0.542

hair-trigger

adj 0.537

timely

adj 0.537

cognizant

adj 0.536

brisk

adj 0.536

adept

adj 0.535

keen on

adj 0.534

deft

adj 0.533

well aware

adj 0.533

superfast

adj 0.533

witted

adj 0.532

precocious

adj 0.530

streetwise

adj 0.530

resourceful

adj 0.529

skillful

adj 0.529

instant

adj 0.527

hasty

adj 0.527

adaptable

adj 0.527

catching

adj 0.526

sharp-tongued

adj 0.523

clairvoyant

adj 0.523

skilful

adj 0.522

eager

adj 0.518

allegro

adj 0.518

immediate

adj 0.518

get-rich-quick

adj 0.518

sagacious

adj 0.518

avid

adj 0.517

canny

adj 0.517

expedite

adj 0.513

cunning

adj 0.513

foresighted

adj 0.511

short order

adj 0.508

clear-sighted

adj 0.508

sharp

adj 0.507

lightfast

adj 0.507

crafty

adj 0.506

go-getting

adj 0.504

insightful

adj 0.504

supersmart

adj 0.504

wide awake

adj 0.503

aware

adj 0.501

upstart

adj 0.501

attentive

adj 0.501

knowledgeable

adj 0.500