Edit · Advanced English Vocabulary: 11 Challenging Words and Definitions

Phantasmagoria

an exhibition of optical effects or illusions

Conscientious

excising attentive care to avoid errors or omissions, concerned with doing something correctly

Miscellaneous

consisting of diverse things or members

Surreptitious

acting or doing something clandestinely

Rendezvous

a meeting at an appointed place or time

Floccinaucinihilipilification

the rare act or habit of conisdering something completely worthless, or unimportant

Pseudonymous

bearing or using a fictitious name

Sesquipedalian

given or characterized by the use of long words

Quintessential

perfectly typical or representative of a particular kind of person or thing

Chrysanthemum

any of various composite plants including weeds, ornamentals grown for their brightly colored often double flower heads, and others important as sources of medicinals and insecticides

Obsequious

marked by or exhibiting an eagerness to please or obey someone