Tongue-lashing is a kind of scolding or reprimanding someone harshly with words. Antonyms of tongue-lashing can be words that describe gentle or kind speech. Some appropriate words for antonyms of tongue-lashing include polite, gentle, constructive, kind, soothing, pacifying, and sympathetic. The opposite of scolding or reprimanding is praising or congratulating, so in this context, the antonyms of tongue-lashing can also refer to words of admiration, support, or encouragement. Other antonyms that might be used in this context include applauding, complimenting, eulogizing, praising, lauding, congratulating, and cheering. Using these words instead of tongue-lashing can help create a positive and harmonious relationship between individuals or groups.