Something apt is perfectly appropriate, clever and well-suited to the matter at hand. If your room is small and dark, “cave-like” would be an apt description.

The wee cousin of aptitude, apt has the same root meaning of "strength and ideal appropriateness." An apt description or nickname is one that’s just right. Apt can also be used in the form "to be apt to" meaning "to be likely to" do something. You’re apt to use this word more now that you know precisely what it means!

Definitions of apt
  1. adjective
    being of striking appropriateness and pertinence
    “an apt reply”
    synonyms: apposite, pertinent
    of an appropriate or pertinent nature
  2. adjective
    (usually followed by `to') naturally disposed toward
    “he is apt to ignore matters he considers unimportant”
    synonyms: disposed, given, minded, tending
    (often followed by `to') having a preference, disposition, or tendency
  3. adjective
    at risk of or subject to experiencing something usually unpleasant
    “he is apt to lose”
    synonyms: liable
    having a good chance of being the case or of coming about
  4. adjective
    mentally quick and resourceful
    “an apt pupil”
    synonyms: clever
    having the capacity for thought and reason especially to a high degree
Word Family

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