instinctive

About 2.49 uses per million words.

Meaning

1. adjective Related to or prompted by instinct.
2. adjective Driven by impulse, spontaneous and without thinking.

   When approached by a stranger, Jared clenched his fists in an instinctive manner.

Similar words

instinctual natural spontaneous self-generated intuitive knee-jerk innate inborn inherent automatic

Often followed by

and feeling behavior reaction sense desire behaviour knowledge or

Word family

instinctively