tremulous

As adjectives the difference between insecure and tremulous

is that insecure is not secure while tremulous is trembling, quivering, or shaking.

As an adjective tremulous

is trembling, quivering, or shaking.

As a verb quail is

to waste away; to fade, wither.

As a noun quail is

any of various small game birds of the genera Coturnix, Anurophasis or Perdicula in the Old World family Phasianidae or of the New World family Odontophoridae.

As a proper noun Quail is

{{surname|from=Scottish Gaelic}.

As adjectives the difference between humorous and tremulous

is that humorous is full of humor or arousing laughter; funny while tremulous is trembling, quivering, or shaking.

As adjectives the difference between pusillanimous and tremulous

is that pusillanimous is showing ignoble cowardice, or contemptible timidity while tremulous is trembling, quivering, or shaking.

As adjectives the difference between tremulous and intrepid

is that tremulous is trembling, quivering, or shaking while intrepid is fearless; bold; brave.

As adjectives the difference between tremulous and tumultuous

is that tremulous is trembling, quivering, or shaking while tumultuous is noisy and disorderly.

As an adjective tremulous

is trembling, quivering, or shaking.

As a noun quaver is

a trembling shake.

As a verb quaver is

to shake in a trembling manner.

As an adjective tremulous

is trembling, quivering, or shaking.

As a verb quavering is

.

As a noun quavering is

the act of something that quavers.

Tremulous is a related term of stupefied.

As adjectives the difference between tremulous and stupefied

is that tremulous is trembling, quivering, or shaking while stupefied is stupefaction.

As a verb stupefied is

(stupefy).

Vexed is a related term of tremulous.

As adjectives the difference between vexed and tremulous

is that vexed is annoyed, irritated or distressed while tremulous is trembling, quivering, or shaking.

As a verb vexed

is (vex).