serious and determined

"An earnest student"

cheerful and full of energy

"She sounded ebullient and happy"

Synonyms:exuberant, buoyant, cheerful, joyful

Antonyms:weary

"Her eccentric fashion sense always turned heads on the street"

Synonyms:unconventional, quirky, peculiar, odd, strange

Synonyms:reverberate

"Universities offering an eclectic mix of courses"

Synonyms:wide, diverse, extensive

Synonyms:euphoria, rapture, elation, bliss, delight

Antonyms:depression

very eager for something, especially a lot of food

"The edacious dog ate its food in seconds"

Synonyms:glutton, voracious

nervous; not calm

Synonyms:overstrung

a large building

Synonyms:educate, enlighten, instruct, teach, improve

bring out or develop

"The therapist tried to educe hidden emotions during the session"

Synonyms:elicit, evoke, extract, deduce

able to the described in words

to make something happen or bring it into effect

"His actions will effectuate the changes needed in the system"

Synonyms:induce, cause, enforce

"His effeminacy was often criticized by those who valued traditional gender roles"

Synonyms:femininity, maidenhood

vivacious and enthusiastic

"Her effervescent personality made her the life and soul of the party"

Synonyms:vivacious, lively, animated

the ability to produce a desired result

"The drug's efficacy has been questioned by medical experts"

Synonyms:effectiveness, success

liquid waste or sewage discharged into a river or the sea

"Industrial effluent"

extremely bad; shocking

Synonyms:shocking, appalling, horrific

energy, style and enthusiasm

"Her performance on stage was full of elan"

Synonyms:style, flair, verve, enthusiasm, spirit

evoke or draw out a reaction or answer from someone

"I tried to elicit a smile from her"

Synonyms:obtain, evoke