shrewd

Shrewd is a related term of ardent.

As adjectives the difference between shrewd and ardent

is that shrewd is showing clever resourcefulness in practical matters while ardent is full of ardor; fervent, passionate.

Watchful is a related term of shrewd.

As adjectives the difference between watchful and shrewd

is that watchful is observant, vigilant and aware while shrewd is showing clever resourcefulness in practical matters.

As an adjective shrewd

is showing clever resourcefulness in practical matters.

As a noun discernment is

the ability to distinguish; judgement.

Shrewd is a related term of acid.

As adjectives the difference between shrewd and acid

is that shrewd is showing clever resourcefulness in practical matters while acid is acid; sour; tart (having a sharp taste such as that of vinegar or a lemon).

As a noun acid is

acid (a food with a sharp taste).

Quick is a related term of shrewd.

In archaic|lang=en terms the difference between quick and shrewd

is that quick is (archaic) pregnant, especially at the stage where the foetus's movements can be felt; figuratively, alive with some emotion or feeling while shrewd is (archaic) scolding, satirical, sharp.

As adjectives the difference between quick and shrewd

is that quick is moving with speed, rapidity or swiftness, or capable of doing so; rapid; fast while shrewd is showing clever resourcefulness in practical matters.

As an adverb quick

is (colloquial) with speed, quickly.

As a noun quick

is raw or sensitive flesh, especially that underneath finger and toe nails.

As a verb quick

is to amalgamate surfaces prior to gilding or silvering by dipping them into a solution of mercury in nitric acid.

As adjectives the difference between shrewd and critical

is that shrewd is showing clever resourcefulness in practical matters while critical is inclined to find fault or criticize; fastidious; captious; censorious; exacting.

As a noun critical is

a critical value, factor, etc.

Prompt is a related term of shrewd.

In archaic|lang=en terms the difference between prompt and shrewd

is that prompt is (archaic) ready, willing (to act) while shrewd is (archaic) scolding, satirical, sharp.

As adjectives the difference between prompt and shrewd

is that prompt is (archaic) ready, willing (to act) while shrewd is showing clever resourcefulness in practical matters.

As a noun prompt

is a reminder or cue.

As a verb prompt

is to lead someone toward what they should say or do.

Shrewd is a related term of bitter.

As adjectives the difference between shrewd and bitter

is that shrewd is showing clever resourcefulness in practical matters while bitter is having an acrid taste (usually from a basic substance).

As a noun bitter is

(usually in the plural bitters) a liquid or powder, made from bitter herbs, used in mixed drinks or as a tonic.

As a verb bitter is

to make bitter.

As adjectives the difference between brilliant and shrewd

is that brilliant is shining brightly while shrewd is showing clever resourcefulness in practical matters.

As a noun brilliant

is a finely cut gemstone, especially a diamond, having many facets.