1. (superl.) Offensive to the sight; contrary to beauty; being of disagreeable or loathsome aspect; unsightly; repulsive; deformed.

2. (superl.) Ill-natured; crossgrained; quarrelsome; as, an ugly temper; to feel ugly.

3. (superl.) Unpleasant; disagreeable; likely to cause trouble or loss; as, an ugly rumor; an ugly customer.

4. (n.) A shade for the face, projecting from the bonnet.

5. (v. t.) To make ugly.

abominable alarming awkward bad bad-tempered base bearish beautiless bitchy bitter blemished blotted cacophonic cacophonous cankered cantankerous churlish corrupt crabbed crabby cranky critical cross cross-grained crotchety crusty cussed dangerous dangersome debased defaced degenerate depraved despicable detestable disadvantageous disagreeable discomforting disfigured disgusting dislikable displeasing disquieting distasteful dysphemistic dysphemized evil excitable execrable explosive feisty filthy foul fractious fraught with danger ghastly grotesque gruesome hateful hazardous heinous hideous homely hostile huffish huffy ill-favored ill-tempered immoral inelegant irascible irritable jeopardous loathsome marred mean menacing mephitic nasty nauseating nauseous noisome objectionable obnoxious odious offensive ominous ornery parlous periculous perilous perverse perverted plain repellent repugnant repulsive revolting rotten serious short on looks sickening snappish sordid sour spiteful spleeny splenetic spoiled surly testy thankless threatening troublesome uglified ugly as hell ugly as sin unaesthetic unalluring unappealing unappetizing unattractive unbeautiful uncomely uncomfortable undelectable undelicious undesirable unengaging unenjoyable unhandsome uninviting unlikable unlovely unpalatable unpleasant unpleasing unprepossessing unpretty unsavory unsightly untasteful unwelcome vile waspish