1. excessively large; bigger than necessary or desired
Usage: informal; often used in casual speech rather than formal writing

Examples

• The shirt was overbig and hung loosely on his frame.
• She bought an overbig portion of pasta for dinner.
• The overbig furniture made the small apartment feel cramped.
• His overbig shoes kept slipping off as he walked.
• The overbig hat covered his eyes completely.