New American Oxford Dictionary
downside
down side |ˈdounˌsīd ˈdaʊnˌsaɪd | ▶noun the negative aspect of something, esp. something regarded as in general good or desirable: a magazine feature on the downside of fashion modeling.
Oxford Dictionary
downside
down |side |ˈdaʊnsʌɪd | ▶noun the negative aspect of something otherwise regarded as good or desirable: a magazine feature on the downside of fashion modelling.
American Oxford Thesaurus
downside
downside noun the downside is all the travel, which keeps me from my family: drawback, disadvantage, snag, stumbling block, catch, pitfall, fly in the ointment; handicap, limitation, trouble, difficulty, problem, complication, nuisance; hindrance; weak spot /point; informal minus. ANTONYMS advantage.
Oxford Thesaurus
downside
downside noun the downside is that getting a patent costs big money: snag, drawback, disadvantage, stumbling block, catch, pitfall, fly in the ointment; handicap, limitation, trouble, difficulty, problem, complication, liability, nuisance; hindrance, obstacle, impediment; weak spot /point, weakness, flaw, defect, fault; informal minus, flip side, hiccup; Brit. informal spanner in the works; N. Amer. informal monkey wrench in the works. ANTONYMS benefit, advantage.
Sanseido Wisdom Dictionary
downside
d ó wn s ì de 形容詞 〈商売などが 〉下降気味の .名詞 U 〖時にa ~〗下降気味 ; 否定的な側面 (↔upside ).