effervescent Antonyms

noneffervescent woebegone still stale sorrowful sober serious phlegmatic peaky oppressive motionless morose miserable stolid surly unenthusiastic out of sorts down in the dumps uncarbonated noncarbonated ornery down in the mouth nonetheless valetudinarian unhappy therewith melancholy lumpish dull downcast down desolate depressed dejected deathlike cheerless blue black acid flat gloomy glum low-spirited listless leaden lazy lackluster joyless inhibited inexpressive