Source : Webster's Revised Unabridged Dictionary (1913)

Teeny \Tee"ny\, a.
   Very small; tiny. [Colloq.]

Teeny \Teen"y\, a. [See {Teen} grief.]
   Fretful; peevish; pettish; cross. [Prov. Eng.]

Source : WordNet®

teeny
     adj : (used informally) very small; "a wee tot" [syn: {bitty}, {bittie},
            {teensy}, {teentsy}, {wee}, {weeny}, {weensy}, {teensy-weensy},
            {teeny-weeny}, {itty-bitty}, {itsy-bitsy}]
     [also: {teeniest}, {teenier}]