welfareEnglishOxford American Thesauruswelfare noun 1 local authorities have a duty to promote the welfare of children: well-being, health, good health, happiness, comfort, security, safety, protection, prosperity, profit, good, success, fortune, good fortune, advantage, interest, prosperousness, successfulness. ▷antonyms hardship. 2 youngsters cannot claim welfare: social security, benefit, state benefit, benefit payment, public assistance; allowance, pension, credit, support; sick pay, sickness benefit, unemployment benefit/pay.