Most eyeful is a phrase that implies something is visually appealing or attractive. Antonyms for most eyeful would be words that suggest the opposite, such as plain, ugly, unattractive, unsightly, or repulsive. These words are used to describe objects, people, or places that lack aesthetics, charm, or beauty. For example, a rundown building with peeling paint and broken windows could be considered unattractive or unsightly. Similarly, a person who appears dirty or disheveled might be described as plain or unattractive. In contrast to most eyeful, these words imply a lack of visual appeal or attractiveness.