Adjective cheap has 4 senses
  1. cheap, inexpensive - relatively low in price or charging low prices; "it would have been cheap at twice the price"; "inexpensive family restaurants"
    Antonyms: expensive, big-ticket, high-ticket, dear, high-priced, pricey, pricy, dearly-won, costly, overpriced
  2. brassy, cheap, flash, flashy, garish, gaudy, gimcrack, loud, meretricious, tacky, tatty, tawdry, trashy - tastelessly showy; "a flash car"; "a flashy ring"; "garish colors"; "a gaudy costume"; "loud sport shirts"; "a meretricious yet stylish book"; "tawdry ornaments"
    Antonyms: tasteful, in good taste (indirect, via tasteless)
  3. bum, cheap, cheesy, chintzy, crummy, punk, sleazy, tinny - of very poor quality
    Antonym: superior (indirect, via inferior)
  4. cheap, chinchy, chintzy - embarrassingly stingy
    Antonym: generous (indirect, via stingy)