The Vocalibrate dictionary

diminutive

US/dɪˈmɪnjətɪv/GB/dɪˈmɪnjʊtɪv/adjective

extremely small

The diminutive gymnast was barely four and a half feet tall.

Near in meaning: tinysmallpetiteminute
In the family: diminishdiminutiondiminutivelydiminutiveness

More words worth knowing

idiosyncraticpeculiar to one person; unlike anyone else's acerbicsharp and harsh in a witty or critical way moribundclose to dying or coming to an end egregiousshockingly bad and obvious halcyonhappy and peaceful, especially when remembering the past liminalin between two stages, states or places