Auxiliary

(adj.) giving assistance or support(n.) a helper, aid

Synonym – back-upAntonym - primary

Candid

(adj.) frank, sincere; impartial; unposed

Synonym - forthrightAntonym - evasive

Cubicle

(n.) a small room or compartment

Synonym - enclosureAntonym - auditorium

Drudgery

(n.) work that is hard and tiresome

Synonym - toilAntonym - frolic

Envoy

(n.) a representative or messenger (as of a government)

Synonym - emissary

Escalate

(v.) to elevate; to increase in intensity

Synonym - ascendAntonym - descend

Expedient

(n.) a means to an end(adj.) advantageous, useful

Synonym - serviceableAntonym - disadvantageous

Feign

(v.) to pretend

Synonym - fake

Flair

(n.) a natural quality, talent , or skill; a distinctive style

Synonym - aptitudeAntonym - inability

Grievous

(adj.) causing sorrow or pain; serious

Synonym - heartrendingAntonym - joyful

Heterogeneous

(adj.) composed of different kinds, diverse

Synonym - mixedAntonym - homogeneous

Horde

(n.) a vast number (as of people); a throng

Synonym - swarmAntonym - handful

Impel

(v.) to force, drive forward

Synonym - propelAntonym - restrain

Incredulous

(adj.)disbelieving, skeptical

Synonym - dubiousAntonym – believing

Inscribe

(v.) to write or engrave; to enter a name on a list

Synonym - imprintAntonym - erase

Monologue

(n.) a speech by one actor; a long talk by one person

Synonym - soliloquyAntonym - conversation

Prognosis

(n.) a forecast of the probable course and outcome of a disease or situation

Synonym - prediction

Rasping

(adj.) with a harsh, grating sound(n.) a harsh sound

Synonym - abrasiveAntonym - smooth

Repugnant

(adj.) offensive, disagreeable, distasteful

Synonym - odiousAntonym - pleasing

Scuttle

(v.) to sink a ship by cutting holes in it; to get rid of something in a decisive way; to run hastily, scurry(n.) a pail

Synonym - discardAntonym - salvage