Greatest
Part of speech: adjective
Definition: Relatively large in scale, size, extent, number (i.e. having many parts or members) or duration (i.e. relatively long); very big.
Example sentence: The greatest gifts you can give your children are the roots of responsibility and the wings of independence.
Superior
Part of speech: adjective
Definition: Higher in quality.Higher in rank.Located above.Being greater or better than average; extraordinary.
Part of speech: noun
Definition: A person of higher rank or quality.The senior person in a monastic community.
Example sentence: I like to make people feel happy and superior in their reaction towards my appearance.