deceitfulde‧ceit‧ful /dɪˈsiːtfəl/ adjective 
His manner was sly and deceitful.—deceitfully adverb: His lawyer argued that his client had not acted deceitfully.—deceitfulness noun [uncountable]
EXAMPLES FROM OTHER DICTIONARIES
- a deceitful man
- He got the contract, but only by being deceitful.
- I don't trust her. I think she has a deceitful smile.
- The company has engaged in deceitful practices for years.
- A deceitful day that makes one think of lilacs and daffodils, before blasting you with another cannonade of winter.
- Being deliberately deceitful about the Government's policies has become something of a habit for the Labour party.
- Even in prayer, his heart was fickle and deceitful, turning this way and that.
- None the less, the effort of the sociologists to exonerate welfare as a special cause of the ghetto crisis was statistically deceitful.
- The Center for the Study of Commercialism considers product placement a deceitful form of advertising.
- The wilfulness of human nature can be deceitful, and we can hang on to old ways like cherished thoughts or possessions.
- There was something deceitful and impatient about the smiling look in his eyes.
Longman Language Activatorintended to deceive
words or actions that are deceitful are intended to deceive someone: · He got the contract, but only by being deceitful.· I don't trust her. I think she has a deceitful smile.· The company has engaged in deceitful practices for years.
misleading information or statements make people believe something that is not true, especially by not giving them all the facts: · The advertisements were deliberately misleading and false.· In court Robbins made misleading statements about his involvement.it is misleading to say/treat/speak of etc: · It would be misleading to say that the recession will soon be over.
British /under false pretenses American if you do something under false pretences , you do it by pretending that the situation is different from what it really is: · He got a loan from the bank under false pretences.· Immigration officers attempt to catch people entering the country under false pretenses.
COLLOCATIONS FROM THE ENTRY His lawyer argued that his client had not acted deceitfully.
His lawyer argued that his client had not acted deceitfully.WORD FAMILYnoundeceitdeceiverdeceptionadjectivedeceitfuldeceptiveverbdeceiveadverbdeceptively
someone who is deceitful tells lies in order to get what they want: His manner was sly and deceitful.—deceitfully adverb: His lawyer argued that his client had not acted deceitfully.—deceitfulness noun [uncountable]