Synonyms of sustain in English:

sustain


See definition of sustain

verb

1‘they were concerned that the balcony might not be able to sustain the weight’

SYNONYMS
bear, support, carry, stand, keep up, prop up, shore up, bolster, underpin, buttress
ANTONYMS

collapse under

2‘she had lived life to the full, but now had only the memories of such times to sustain her’

SYNONYMS
comfort, help, assist, encourage, succour, support, give strength to, be a source of strength to, be a tower of strength to, buoy up, carry, cheer up, hearten, see someone through
informal buck up
ANTONYMS

torment, plague

3‘they were unable to sustain a coalition’

SYNONYMS
continue, carry on, keep up, keep going, keep alive, keep in existence, keep, maintain, prolong, preserve, conserve, protract, perpetuate, bolster up, prop up, retain, extend

4‘she had a slab of bread and cheese to sustain her’

SYNONYMS
maintain, continue, preserve, keep, keep alive, keep going, provide for
nourish, feed, nurture, provide board for

5‘six Marines sustained slight injuries’

SYNONYMS
undergo, experience, go through, suffer, endure

6‘the allegation was not sustained by any court’

SYNONYMS
uphold, validate, ratify, vindicate, confirm, endorse, approve
verify, corroborate, substantiate, bear out, prove, authenticate, attest to, back up, evidence, justify