1. past tense of guestimate; to estimate or calculate something based on a guess or rough judgment rather than precise data
Usage: informal; blend of 'guess' and 'estimate'

Examples

• I guestimated the cost of the project at around $5,000.
• She guestimated that there were about 200 people at the concert.
• We guestimated the travel time to be three hours based on the distance.
• He guestimated the weight of the box without actually putting it on a scale.
• The team guestimated the budget for next quarter before the official numbers came in.
• I guestimated how many cookies were in the jar by looking at it quickly.