sweeten vs sugarcoat

sweeten and sugarcoat both are verbs.

Word	Noun	Adjective	Verb	Adverb
sweeten	No	No	Yes	No
sugarcoat	No	No	Yes	No

As verbs, sugarcoat is a hyponym of sweeten; that is, sugarcoat is a word with a more specific, narrower meaning than sweeten:

Other hyponyms of sweeten include honey, saccharify, sugar, candy, glaze, mull.

sweeten (verb)	sugarcoat (verb)
make sweeter, more pleasant, or more agreeable	cause to appear more pleasant or appealing
make sweeter in taste	coat with something sweet, such as a hard sugar glaze