As an adjective dismal

is disappointingly inadequate.

As a noun gloom is

darkness, dimness or obscurity.

As a verb gloom is

to be dark or gloomy.

As verbs the difference between decrease and devalue

is that decrease is of a quantity, to become smaller while devalue is .

As a noun decrease

is an amount by which a quantity is decreased.

As adjectives the difference between mellow and sooth

is that mellow is soft or tender by reason of ripeness; having a tender pulp while sooth is (archaic) true.

As nouns the difference between mellow and sooth

is that mellow is a relaxed mood while sooth is (archaic) truth.

As a verb mellow

is to make mellow; to relax or soften.

As nouns the difference between zymogene and isoenzyme

is that zymogene is (biology) one of a physiological group of globular bacteria which produces fermentations of diverse nature; — distinguished from (pathogene) while isoenzyme is (enzyme) any of a group of enzymes that catalyze the same reaction but have different structures and physical, biochemical and immunological properties.

As a noun repeatability

is the property or quality of being repeatable.

As an adjective repetitive is

happening many times in a similar way; containing repetition; repeating.

As verbs the difference between refurbish and furnish

is that refurbish is to rebuild or replenish with all new material; to restore to original (or better) working order and appearance while furnish is to provide a place with furniture, or other equipment.

As a noun furnish is

material used to create an engineered product.

As adverbs the difference between caringly and carefully

is that caringly is in a caring manner while carefully is (lb) sorrowfully.

As adjectives the difference between synchronal and synchronous

is that synchronal is synchronous; simultaneous while synchronous is at the same time, at the same frequency.

As a noun indigestion

is a common medical condition most often caused by eating too quickly.

As an adjective undigested is

not digested.

As nouns the difference between quip and farce

is that quip is a smart, sarcastic turn or jest; a taunt; a severe retort or comeback; a gibe while farce is .

As a verb quip

is to make a quip.