strengthen
[strengk-thuhn, streng-, stren-]
/ ˈstrɛŋk θən, ˈstrɛŋ-, ˈstrɛn- /
VERB
make more forceful, powerful
Synonyms
STRONGEST
bolster
build up
enhance
enlarge
establish
extend
heighten
increase
intensify
invigorate
reinforce
restore
set up
step up
support
sustain
toughen
STRONG
add
anneal
ascend
brace
buttress
confirm
corroborate
empower
fortify
harden
justify
mount
multiply
regenerate
rejuvenate
renew
rise
steel
substantiate
temper
tone
wax
WEAK
Antonyms
VERB
encourage, hearten
Synonyms
Antonyms
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.