The term "half-awake" refers to a state of consciousness that is neither fully asleep nor fully awake. Some synonyms for this term include: drowsy, groggy, sleepy, somnolent, lethargic, dozy, torpid, sluggish, and languid. These words all convey a sense of a person being in a semi-conscious, dreamlike state, with a reduced awareness of their surroundings. They can also imply a lack of energy or motivation. Whether you're feeling half-awake due to sleep deprivation, medication, or simply being in a relaxed state, these synonyms can help you express your state of mind more precisely.