Trepidation - fear or agitation about something that may happen 

Ambivalence - mixed or contradictory feelings 

Convivial - friendly, lively, enjoyable atmosphere   

Onerous

Efficacious  

Vicissitude  

Archaic - old fashioned / out of date 

Sonorous - imposingly deep and full sound 

Insular - ignorant of others  

Amalgam - mixture or blend 

Disseminate  

Proclivity - tendency to do something 

Prescient - having knowledge of events before they take place 

Clarke Kent in the phone box (superman reference) where the persona of one thing is different to the other 

Homogenous - having the same relation, relative position or structure. Similar. 

Opulence - great wealth or luxury 

Extemporaneous - spoken or done without preparation (extemporary) 

Vociferous  Lucidity - expressed clearly or easy to understand 

Abnegation - the act of rejecting something - self denial 

Risible - provoking laughter through being ludicrous  

Equanimity - calmness and composure, especially in a difficult situation 

Recalcitrant - Having an stubborn uncooperative attitude towards authority  

Alacrity - brisk and cheerful readiness. "she accepted the pillow with alacrity" 

Tech sagacious  - Technology smart. "he's certainly a tech-sagacious fellow." 

Persnickity - It means overparticular; fussy.  

Defenestration - The act of throwing something or someone out of a window. 

Copasetic - Completely satisfactory. 

Elucidate - Make clear 

Platitude - A remark or statement, especially one with moral content, that has been used to often to be interesting or thoughtful 

Syllogisms - An instance of a form of reasoning in which a conclusion is drawn from two given or assumed propositions (e.g. all dogs are animals; all animals have four legs; therefore all dogs have four legs). 

Oulipian - A French term derived from 'Oulipo', to describe someone who finds great freedom in knowing their constraints.