The word "wilful" is correct and usable in written English.
It can be used to describe someone who shows strong determination or an individual who is deliberate in their actions, often despite the advice or wishes of others. Example: Despite his mother's protests, the wilful teenager refused to apologize for his behaviour.
Ecocide (wilful damage to the environment, ecosystems, biodiversity) should be internationally recognised as a crime of the greatest magnitude.
In Carmen, Jeanmaire was fierce, sexual, wilful – hair cropped boyishly close, hips jutting, legs lengthened by the shortness of her tunic – and Petit's choreography was charged with eroticised combat.
It's all too late now; she has gone and the era has passed, although its ill-effects are still to be seen in communities that have never recovered from her wilful sledgehammer assault upon them.
In March, David Cameron, the prime minister, announced that social workers could face a charge of wilful neglect and up to five years in prison for failing to protect children from abuse.
There are, therefore, at least four layers of interpretation and wilful dramatic exaggeration standing between the real Richard III, and Laurence Olivier prancing about onscreen with a fake nose, rolling his Rs like there's no tomorrrrrow and threatening to kill everyone.
Cameron believes his plan to extend the offence of wilful neglect beyond the health service and adult social care sector to a far wider group of public service workers will send out a message that child abuse can no longer be regarded as a second order issue by public service workers.
There are marital jokes, impish rhymes and wilful metaphors that strain, in their jaunty inventiveness, against the harrowing subject matter.
The US has filed espionage charges against Snowden, charging him with theft of government property, unauthorised communication of national defence information and wilful communication of classified communications intelligence to an unauthorised person.
Alawi says this wilful destruction of Islamic heritage is no accident: it is driven by state-endorsed wahhabism, the hardline interpretation of Islam that perceives historical sites as encouraging sinful idolatry.
Not a wilful one, she was a destroyer with a purpose.
There is some extreme Op Art as well as the wilful swirls of full-blown psychedelia.
