transcription, транскрипция: [ pʌŋktɪliəs ]
Someone who is punctilious is very careful to behave correctly. ( FORMAL )
He was punctilious about being ready and waiting in the entrance hall exactly on time...
He was a punctilious young man.
ADJ
• punc‧tili‧ous‧ly
Given the circumstances, his behaviour to Laura had been punctiliously correct.
ADV