adverb
Synonyms: hard 8, burdensomely, difficultly, hardly, laboriously, onerously, toilsomely
Contrasted words: easily, facilely
Antonyms: effortlessly
adverb
Synonyms: hard 8, burdensomely, difficultly, hardly, laboriously, onerously, toilsomely
Contrasted words: easily, facilely
Antonyms: effortlessly
Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003