Insignificant, a.
1. Not significant; void of signification, sense, or import; meaningless; as, insignificant words.
2. Having no weight or effect; answering no purpose; unimportant; valueless; futile. Laws must be insignificant without the sanction of rewards and punishments. Bp. Wilkins.
3. Without weight of character or social standing; mean; contemptible; as, an insignificant person.
Syn. -- Unimportant; immaterial; inconsiderable; small; inferior; trivial; mean; contemptible.
Shades of meaning
Fernald lists insignificant only as an antonym, under large.
He lists it without comment; the entries above explain its neighbors.
Synonyms
none given