frugal

Judicious is a related term of frugal.

As adjectives the difference between judicious and frugal

is that judicious is having, characterized by, or done with good judgment or sound thinking while frugal is avoiding unnecessary expenditure either of money or of anything else which is to be used or consumed; avoiding waste.

Covetous is a related term of frugal.

As adjectives the difference between covetous and frugal

is that covetous is inordinately desirous; excessively eager to obtain and possess (especially money); avaricious while frugal is avoiding unnecessary expenditure either of money or of anything else which is to be used or consumed; avoiding waste.

As adjectives the difference between frugal and temperate

is that frugal is avoiding unnecessary expenditure either of money or of anything else which is to be used or consumed; avoiding waste while temperate is moderate; not excessive; as, temperate heat; a temperate climate.

As a verb temperate is

(obsolete) to render temperate; to moderate; to soften; to temper.

As adjectives the difference between frugal and keen

is that frugal is avoiding unnecessary expenditure either of money or of anything else which is to be used or consumed; avoiding waste while keen is showing a quick and ardent willingness or responsiveness, enthusiastic, eager; interested, intense.

As a verb keen is

(rare) to sharpen; to make cold or keen can be to utter a keen.

As a noun keen is

a prolonged wail for a deceased person.

As adjectives the difference between frugal and fiscal

is that frugal is avoiding unnecessary expenditure either of money or of anything else which is to be used or consumed; avoiding waste while fiscal is related to the treasury of a country, company, region or city, particularly to government spending and revenue.

As a noun fiscal is

a public official in certain countries having control of public revenue or fiscal can be any of various african shrikes of the genus lanius .

As adjectives the difference between frugal and tightfisted

is that frugal is avoiding unnecessary expenditure either of money or of anything else which is to be used or consumed; avoiding waste while tightfisted is .