guesstimative

English

guesstimative (comparative more guesstimative, superlative most guesstimative)

(rare) Of or pertaining to a guesstimate.
- 1974, Navy Civil Engineer (NAVFAC P)‎^[1], volume 15, Naval Facilities Engineering Command, →LCCN, →OCLC, page 19:
  An old tool - economic analysis - is gaining prominence in a relatively new domain of interest - energy. This is a healthy trend; in fact, it is essential if decision-making in this highly visible area is to evolve into an objective rather than an intuitive or "guesstimative" process.