Sophomoric

conceited and overconfident of knowledge but poorly informed and immature

Mnemonic -
Sophomoric slogan
"Change the world"

Soporific

Word meaning -
causing or tending to cause sleep

Usage examples -

Etymological note -

Additional note -

Mnemonic -

Storyteller slumps to soporific levels

Nosegay

Synonyms -
Bouquet, Posy
Mnemonic -

Lugubrious

exaggeratedly or affectedly mournful 




Mnemonic -
Lugubrious Look

Fallow

Word meaning -
1.of a light yellowish-brown color

Fellow deer

2. (of land)  ploughed but left unplanted to resstore its fertility

Fallow fields
Usage examples -

By crop rotation farmers can keep their fields under continuous production, without the need to let them lie fallow.


Facsimile

exact copy or reproduction or writing, painting, a picture etc.

Factotum

Word meaning -
A factotum is a general servant or a person having many diverse activities or responsibilities. The word derives from the Latin command (imperative construction) fac totum ("do/make everything").
Usage examples -

I applied for a job there, as a factotum on a campsite 

Frivolous

Word meaning -
(of activities) silly or wasteful
lacking in seriousness

Usage examples -
Wasting time with a frivolous complaint

Consumers should avoid filing frivolous cases in court.

Frivolous litigation, as used in colloquial and political terms in the United States, refers to lawsuits that are based on a theory that seems absurd, or where the claim results in damages that greatly exceed what one would expect from reading 
a brief summary of the case. Awards for medical malpractice are sometimes derided as frivolous (in this sense of meaning "excessive").

Additional note -

Mnemonic -
Frivolous fun
The Frivolous Fun Finale Fling

Fables for the Frivolous

dunce

Word meaning -
a slow-witted or stupid personUsage examples -
Give Dunce's Cap to the Examination Markers

scrupulous

Word meaning -
1 : having moral integrity : acting in strict regard for what is considered right or proper
2 : punctiliously exact
http://www.aolsvc.merriam-webster.aol.com/dictionary/scrupulous
Usage examples -
Scrupulous cleanliness

Mnemonics -

1.
However, this does not mean that a civilized and scrupulous society can adopt violent means to resolve these problems


2.
Scrupulous Scholar

3.

Scrupulous Selection

requiem



Word meaning -
1: a mass for the dead
2 a: a solemn chant (as a dirge) for the repose of the dead
b: something that resembles such a solemn chant
3 a: a musical setting of the mass for the dead
b: a musical composition in honor of the dead




Mozart conducts a rehearsal of his Requiem in this romanticized image of his last day.




Usage examples -

Etymological note -

Additional note -

Mnemonic -

scruple

Word meaning -
a minute part or quantity

Tote

PAIL

Word meaning -

a usually cylindrical container with a handle



More Pails