drastic

As adjectives the difference between quick and drastic

is that quick is moving with speed, rapidity or swiftness, or capable of doing so; rapid; fast while drastic is extreme; severe.

As an adverb quick

is with speed, quickly.

As a noun quick

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

As a verb quick

is {{cx|transitive|lang=en}} To amalgamate surfaces prior to gilding or silvering by dipping them into a solution of mercury in nitric acid.

As adjectives the difference between drastic and brutal

is that drastic is extreme; severe while brutal is (savagely violent)Savagely violent, vicious, ruthless, or cruel.

As adjectives the difference between firm and drastic

is that firm is steadfast, secure, hard (in position) while drastic is extreme; severe.

As a noun firm

is (uk|business) a business partnership; the name under which it trades.

As a verb firm

is to make firm or strong; fix securely.

As a proper noun strong

is .

As an adjective drastic is

extreme; severe.

As adjectives the difference between drastic and substantial

is that drastic is extreme; severe while substantial is having to substance; actually existing; real; as, substantial life.

As a noun substantial is

anything having substance; an essential part.

As an adjective drastic

is extreme; severe.

As a noun severity is

the state of being severe.

As adjectives the difference between drastic and stringent

is that drastic is extreme; severe while stringent is strict; binding strongly; making strict requirements; restrictive; rigid; severe.

As adjectives the difference between drastic and immense

is that drastic is extreme; severe while immense is huge, gigantic, very large.

As adjectives the difference between rapid and drastic

is that rapid is very swift or quick while drastic is extreme; severe.

As an adverb rapid

is rapidly.

As a noun rapid

is a rough section of a river or stream which is difficult to navigate due to the swift and turbulent motion of the water.

As adjectives the difference between drastic and enormous

is that drastic is extreme; severe while enormous is (obsolete)  deviating from the norm; unusual, extraordinary.