Strictest

adjective

1. Strained; drawn close; tight.

   "strict embrace"

2. Tense; not relaxed.

   "strict fiber"

3. Exact; accurate; precise; rigorously particular.

   "to keep strict watch"

4. Governed or governing by exact rules; observing exact rules; severe; rigorous.

   "very strict in observing the Sabbath"

5. Rigidly interpreted; exactly limited; confined; restricted.

   "to understand words in a strict sense"