Synonym: reckless, sloppy, slovenly. Antonym: careful. Similar words: nonetheless, homeless, senseless, nevertheless, tactlessness, less, release, telescope. Meaning: ['keəlɪs] 
adj. 1. marked by lack of attention or consideration or forethought or thoroughness; not careful 2. effortless and unstudied 3. (usually followed by `of') without due thought or consideration.
adj. 1. marked by lack of attention or consideration or forethought or thoroughness; not careful 2. effortless and unstudied 3. (usually followed by `of') without due thought or consideration. 
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151. If you were the least bit careless, you could fall right in.
152. Stay focused and don't get pressured by the ticking clock. Hastiness will lead to careless mistakes. If you are going to do a job, do it right once.
153. In a word, Yuexiang Shu is a poet we should never ignore in Song literature's development. His contribution to Song's literature we can never be careless about.
154. As a careless person, she always buy a pig in a poke.
155. He felt very old - centuries older than those careless, care-free young companions of his others days.
156. That careless mother lets her small children run the streets all day.
157. It is a matter of life and death. You shouldn't be careless.
158. "Are you his dormitory?"For the puzzling cachinnation [sentencedict.com], the teacher be also make careless.
159. In the video frequency, Howard play fashionably to sluggishly in the national anthem, careless.
160. He realized that he'd lost the race only because he had been overconfident, careless and lax.
161. Newspaper reviews, initially positive, took a sharp downward turn within weeks, with critics pronouncing the work "coarse," "a piece of careless hack-work," "the veriest trash."
161. Sentencedict.com is a online sentence dictionary, on which you can find nice sentences for a large number of words.
162. 'I neither want any thanks, nor merit any,'was the careless rejoinder.
163. What she meant is that if you spent money frivolously , you might really need it later and regret your earlier careless spending.
164. All of them, I have been told, contain snares and nets for careless birds, and an almost constant, unperceived challenge to reverse one's habitual estimations and esteemed habits.
165. And, the earthquake Zhe of the scathing penalty dint is by luck usually caused by the dragnet of justice careless omission mental state offset.
166. Statistical data shows, net Shang Jiucheng comes from careless root estate.
167. Hemline embroidery lace, it doesn't seem careless, exquisite don't bear to touch them.
168. The old soldier was so inured to danger that he became careless.
169. We cannot be even a little careless for children's education.
170. In those months, as the fighting escalated, concern about careless, trigger-happy Americans was rising in Afghanistan.
More similar words: nonetheless, homeless, senseless, nevertheless, tactlessness, less, release, telescope, bless, relevant, unless, irrelevant, endless, much less, flawless, reckless, tactless, pointless, unrelentingly, tactlessly, no less than, regardless, more or less, irregardless, regardless of, sales, care, car, rely, flesh out.