one-track
Unable to diversify
One-track describes a mind or focus limited to a single subject or idea, unable or unwilling to consider anything else: He's got a one-track mind—all he thinks about is money.
The phrase often implies obsession, especially with sex: a one-track mind said with a knowing look.
The image is of a train that can only go one direction.
Devoted to one purpose
- monomaniacalFixated on one idea
- fixatedObsessively attached or focused
- preoccupiedMentally elsewhere, not present
- consumedFully used or eaten
engrossed · absorbed · compulsive · fanatical · zealous · monomania · fixation · riveted
Fixed in purpose
- tenaciousStubbornly determined to continue
- steadfastFirmly loyal, unshakeable
- unwaveringSteady and unchanging
- perseveringMaintaining effort despite difficulty
persistent · relentless · unflagging · unfaltering · unshakable · indomitable · unflinching · unrelenting
Firmly refusing to yield
- inflexibleUnable to bend
- rigidUnable to bend
- unyieldingRefusing to give way
- intransigentRefusing to compromise
unbending · adamant · immovable · uncompromising · hardheaded · pigheaded · bullheaded · stiff
Having restricted outlook
- myopicUnable to see far
- limitedRestricted in extent
- constrainedForced into narrow limits
- restrictedLimited in scope
insular · parochial · provincial · closed-minded · shortsighted · unimaginative · incurious · linear
single-minded
Devoted to one purpose
- monomaniacalFixated on one idea
- fixatedObsessively attached or focused
- preoccupiedMentally elsewhere, not present
consumed · engrossed · absorbed · compulsive · fanatical · zealous · monomania · fixation · riveted · immersed
resolute
Fixed in purpose
- tenaciousStubbornly determined to continue
- steadfastFirmly loyal, unshakeable
- unwaveringSteady and unchanging
persevering · persistent · relentless · unflagging · unfaltering · unshakable · indomitable · unflinching · unrelenting · unswerving
obstinate
Firmly refusing to yield
- inflexibleUnable to bend
- rigidUnable to bend
- unyieldingRefusing to give way
intransigent · unbending · adamant · immovable · uncompromising · hardheaded · pigheaded · bullheaded · stiff · mulish
blinkered
Having restricted outlook
- myopicUnable to see far
- limitedRestricted in extent
- constrainedForced into narrow limits
restricted · insular · parochial · provincial · closed-minded · shortsighted · unimaginative · incurious · linear · simplistic
one-trackversatile
Capable in varied contexts
open-minded · broad-minded · flexible · multifaceted · wide-ranging
one-trackwide-ranging
Covering many subjects
multidimensional · well-rounded · diverse · many-sided · varied
one, track, ones, tracks, tracked, tracking, tracker, trackers, trackless