easy to see or notice; clear or definite a noticeable improvement Her scars are hardly noticeable now. noticeable in somebody/something This effect is particularly noticeable in younger patients. noticeable that… It was noticeable that none of the family were present.Extra examples These changes are more noticeable in women than in men. This may not be noticeable to people from outside New York. Foreign wars were one of the most noticeable features of his reign. It was noticeable that none of the family were present. The new filing system is a noticeable improvement on the old one.