v. /ges"teuh mayt'/ ; n. /ges"teuh mit, -mayt'/ , v. , guesstimated, guesstimating , n. Informal.
v.t.
1. to estimate without substantial basis in facts or statistics.
n.
2. an estimate arrived at by guesswork.
Also, guestimate .
[ 1935-40, Amer.; b. GUESS and ESTIMATE ]