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1. (usually followed by 'to') naturally disposed toward
   "he is apt to ignore matters he considers unimportant"
   - disposed, given, minded, tending
    
2. At risk of or subject to experiencing something usually unpleasant
   "he is apt to lose"
   - liable
    
3. Mentally quick and resourceful
   "an apt pupil"
   - clever
    
4. Being of striking appropriateness and pertinence
   "an apt reply"
   - apposite, pertinent

Derived forms: apter, aptest

See also: apropos, aptly, aptness, inclined, intelligent, likely

Encyclopedia: Apt Apt, France Apt, Vaucluse