When we try to describe someone as a nice chap, we are usually referring to their friendly and likable personality. Some synonyms for this term include welcoming, amiable, affable, hospitable and genial. These words all convey a sense of warmth and kindness that is associated with being a nice chap. Other synonyms that could be used to describe someone who is pleasant and agreeable include sociable, charming, courteous, and congenial. Each of these terms highlights a different aspect of a person's personality that makes them a delight to be around. Whatever synonym we choose, it is clear that a nice chap is someone who radiates positivity and makes life more enjoyable for those around them.