To surpass in growing; to grow more than. Shak. [1913 Webster]
To grow out of or away from; to grow too large, or too aged, for; as, to outgrow clothing; to outgrow usefulness; to outgrow an infirmity. [1913 Webster]

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OXFORD DICTIONARY

outgrow, v.tr. (past -grew; past part. -grown)
1 grow too big for (one's clothes).
2 leave behind (a childish habit, taste, ailment, etc.) as one matures.
3 grow faster or taller than (a person, plant, etc.).

Idiom

outgrow one's strength become lanky and weak through too rapid growth.

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THESAURUS

outgrow

blossom, brew, burgeon, develop, flourish, gather, germinate, grow, grow up, hypertrophy, increase, mature, mushroom, overdevelop, overgrow, overtop, procreate, pullulate, reproduce, shoot up, spring up, sprout, sprout up, thrive, tower, upshoot, upspear, upspring, upsprout, vegetate, wax

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ROGET THESAURUS

outgrow

Expansion

VB become larger &c (large), expand, widen, enlarge, extend, grow, increase, incrassate, swell, gather, fill out, deploy, take open order, dilate, stretch, distend, spread, mantle, wax, grow up, spring up, bud, bourgeon, shoot, sprout, germinate, put forth, vegetate, pullulate, open, burst forth, gain flesh, gather flesh, outgrow, spread like wildfire, overrun, be larger than, surpass, render larger &c (large), expand, spread, extend, aggrandize, distend, develop, amplify, spread out, widen, magnify, rarefy, inflate, puff, blow up, stuff, pad, cram, exaggerate, fatten.

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