rigid

As an adjective rigid

is rigid.

As a verb tremble is

.

As a noun sniff

is an instance of sniffing.

As a verb sniff

is (ambitransitive) to make a short, audible inhalation, through the nose, as if to smell something.

As an adjective rigid is

rigid.

As an initialism irm

is information rights management.

As an adjective rigid is

rigid.

As an adjective rigid

is rigid.

As a verb reffed is

(ref).

As adjectives the difference between rigid and false

is that rigid is rigid while false is (label) one of two states of a boolean variable; logic.

As adjectives the difference between righteous and rigid

is that righteous is free from sin or guilt while rigid is rigid.

As a verb righteous

is to make righteous; specifically, to justify religiously, to absolve from sin.

As adjectives the difference between astringent and rigid

is that astringent is sharp, caustic, severe while rigid is rigid.

As a noun astringent

is a substance which draws tissue together, thus restricting the flow of blood.

As adjectives the difference between rigid and undefined

is that rigid is rigid while undefined is lacking a definition or value.

As adjectives the difference between rigid and feeble

is that rigid is rigid while feeble is deficient in physical strength; weak; infirm; debilitated.

As a verb feeble is

(obsolete) to make feeble; to enfeeble.