Alli is one of the few over-the-counter diet aids that might actually work, according to the Mayo Clinic. The pill is a lower-dosage version of Xenical, consisting of 60 mg of the fat-blocking drug orlistat.
Adjective[edit] tentative â(comparative more tentative, superlative most tentative) Of or pertaining to a trial or trials; essaying; experimental.
Wiktionary (0.00 / 0 votes) Rate this definition: tentative (Noun). A trial; an experiment. tentative (Adjective). Of or pertaining to a trial or trials; essaying; experimental. tentative (Adjective). Uncertain; subject to future change.iktionary (0.00 / 0 votes) Rate this definition: tentative (Noun). A trial; an experiment. tentative (Adjective). Of or pertaining to a trial or trials; essaying; experimental. tentative (Adjective). Uncertain; subject to future change.