actions or methods that are not strong enough, and so are not effective in dealing with a difficult problem:
This is no time for half measures.
GRAMMAR GRAMMAR !! You do not usually say 'the half' • I've only read half of the story (NOT I've only read the half of the story). The only time you say 'the half' is when you are referring to a particular half• the first half of the book!! Do not say 'one and half', 'two and half' etc. Say one and a half, two and a halfetc• She is two and a half years old. These numbers are followed by a plural noun, not a singular one• one and a half days (NOT one and a half day)!! Do not say 'half of hour'. Say half an hour or, especially in spoken American English, a half hour.
Definition from the Longman Dictionary of Contemporary English Advanced Learner's Dictionary.