weak
adj
1.
wanting in physical strength
backboneless crimp leasy mainless merrow mightless strengthless thaveless unmighty untrum wanthriven wanwhole weak-minded woak
Antonym:
strong Derived from:
weakness 3.
(used of vowels or syllables) pronounced with little or no stress
4.
5.
6.
deficient or lacking in some skill
7.
8.
(used of verbs) having standard (or regular) inflection
9.
10.
deficient in magnitude; barely perceptible; lacking clarity or brightness or loudness etc
11.
12.
deficient in intelligence or mental power