LIGHTHEARTEDLY Antonyms There are 6 antonyms of the word lightheartedly. (opposite meanings)Did you mean?Definition of LIGHTHEARTEDLYSynonyms of LIGHTHEARTEDLYAlso try opposite words for..lightheartedlight-heartedlightheartednessBest Opposite Words For LIGHTHEARTEDLYTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1earnestlyadverb, adjectiveadv, adj2gravelyadverb, adjectiveadv, adj3heavilyadverbadv4seriouslyadverbadv5solemnlyadverbadv6somberlyadverbadv Alternatives for EARNESTLY Words (6)seriouslyeagerlyferventlyintenselysincerelywholeheartedlyPhrases (1)in earnestOpposite words for earnestly Alternatives for GRAVELY Words (8)seriouslyseverelycriticallyearnestlysolemnlybadlysoberlystaidlyOpposite words for gravely Alternatives for HEAVILY Words (16)austerelydeeplygreatlyharshlyintenselymightilypowerfullyseriouslyseverelysignificantlystronglythoroughlyweightilyhardheavyintemperatelyPhrases (1)to a great extentOpposite words for heavily Alternatives for SERIOUSLY Words (7)gravelygenuinelysincerelytrulybadlyearnestlyseverelyPhrases (1)in earnestOpposite words for seriously Alternatives for SOLEMNLY Words (7)deeplyearnestlygravelyprofoundlyseriouslysincerelysomberlyOpposite words for solemnly Alternatives for SOMBERLY Words (8)darklyforlornlygloomilygravelymournfullyseriouslysolemnlysombrelyOpposite words for somberly