harden (verb) harden: make or become solid
Sinonime: allay,
alleviate,
assuage, be enough,
blunt,
calm,
compose,
conciliate,
content,
diminish,
do*,
ease,
gratify,
lessen,
lull, make matters up, meet halfway,
mitigate,
mollify, patch things up,
placate, propitiate,
quell,
quench,
quiet,
serve,
soften,
soothe,
subdue, sweeten, tranquilize
Antonime: aggravate,
annoy,
incite,
irritate,
provoke,
tease