Yes it is one syllable. Every word has at least one syllable.
The syllable stress in the word "dissatisfied" falls on the second syllable, "sat." So it is pronounced as "dis-SAT-is-fied."
Satisfactory is stressed on the third syllable. A simple way of testing which syllable is stressed is by saying the word aloud. Look for the syllable that you naturally emphasise more in your speech.
Example: Satisfaction would be written like this. Sat|is|fact|ion
It is pronounced as "sat-ahyr." The emphasis is on the first syllable.
They are all one syllable words.
In the word "Saturday," the unstressed letter is "u." In this word, the primary stress falls on the first syllable, "Sat," making the "u" in the second syllable, "ur," less prominent in pronunciation.
A closed syllable. An open syllable. A vowel-consonant-e syllable. A vowel team syllable. A consonant-le syllable. An r-controlled syllable.
The accented syllable in the word "fierceness" is the first syllable, "fierce."
The accented syllable in "wanders" is the first syllable, "wan."
The stressed syllable in the word "morning" is the first syllable, which is "mor."
The second syllable of unique is a stressed syllable.
The stressed syllable in the word "belief" is the first syllable, "be."