hard - WordReference.com English Thesaurus
https://www.wordreference.com/synonyms/hard
WEBdifficult, arduous, laborious, tough, rough, tiring, challenging, strenuous, grueling, gruelling (UK), demanding, backbreaking, exacting, hard work, hard going, severe, extreme, painful. Sense: Adjective: difficult conceptually. Synonyms: difficult, tough, challenging, complicated, complex, formidable, dense. Sense: Adjective: solid. Synonyms:
DA: 47 PA: 69 MOZ Rank: 3