Interview Filler Words: How to Reduce “Um,” “Like,” and Rambling

Everyone uses filler words. A few aren't automatically a problem. The issue is repetition.

If every difficult question produces

“Um…” “Like…” “Basically…” “You know…” the answer can become harder to follow. The goal isn't to eliminate every filler word. It's to become more deliberate about what happens when you need time to think. What are filler words? Filler words are sounds or phrases used while someone is searching for what to say.

Common examples include

• um
• uh
• like
• basically
• actually
• you know
• I mean
• kind of
• sort of

Some are useful in normal conversation. They become noticeable when they occur repeatedly or interrupt important points. Why do filler words appear during interviews? Interview questions create pressure. When candidates need more thinking time, they often keep speaking while deciding what to say.

That creates

“Um, so basically what happened was…”

instead of

[pause] “The main problem was…” The second answer is usually easier to follow. Don't treat every filler as a mistake This is important. Natural conversation contains pauses and conversational markers. You do not need to sound like a newsreader.

The question is

Are filler words interfering with your communication? That's what you should measure. Find your personal filler words

Don't assume your biggest issue is

“um.” Record yourself.

You may discover your most frequent phrase is

“Basically…”

or

“So…”

or

“I think…” Once you know the pattern, you can train it. The transcript exercise Take a five-minute interview recording. Transcribe it. Highlight repeated fillers.

For example

“So I basically worked on, um, a system where we, like, had to…”

You might notice that your filler density rises when

• the question is difficult
• you don't know the answer
• you are explaining technical topics
• you are recalling numbers

That's useful. The goal isn't simply to count fillers. It's to understand when they appear. The pause replacement

One of the simplest drills is

Replace one filler with a deliberate pause.

Instead of

“Um, I think the main issue…”

try

“The main issue…” Pause. Then continue. A short pause gives you time to think without filling every second with speech. The sentence-start drill Choose ten common questions. Before each answer, take one breath. Then begin. This reduces the tendency to start speaking before you know the first sentence.

For example

Question

“Why do you want this role?” Pause.

Then

“There are two main reasons…” That creates structure immediately. The difficult-question drill Take questions you don't know.

For example

“Tell me about a time your project failed.” Allow yourself two seconds. Then begin.

You're training your brain to associate

uncertainty

with

pause + thinking

rather than

uncertainty + filler words. Don't replace fillers with “I think”

Some candidates reduce

“um”

and replace it with

“I think…” every sentence. That's not necessarily better. Be specific.

Instead of

“I think the main issue was…”

say

“The main issue was…” when you're confident. Filler words in technical interviews Technical explanations can create especially long filler chains.

For example

“So basically what I would probably do is, like, kind of…” Practice breaking technical reasoning into deliberate sections: “I see two options.” Pause. “The first is…” Pause. “The tradeoff is…” Now your thinking becomes easier to follow. Don't practice filler reduction in isolation You still need to answer the question. A candidate who eliminates fillers but sounds robotic hasn't necessarily improved.

Combine

answer quality

• structure
• natural delivery

Track the right metric

You can track

fillers per minute But don't treat a lower number as automatically better.

Also track

clarity answer completeness naturalness pauses The goal is understandable speech. A five-minute filler-word drill

Take

“Tell me about yourself.” Answer. Count your fillers. Then answer again.

Your goal is not

zero fillers.

Your goal is

fewer unnecessary fillers and clearer phrasing.

Repeat with

Tell me about a failure. Why should we hire you? Tell me about a difficult project. Use voice tools for diagnosis A voice-based mock interview can help identify patterns you won't notice yourself. Mockly's voice-first interview workflow provides an opportunity to practice spoken answers and review interview performance rather than only writing responses. (trymockly.com) The important rule

Don't obsess over every

“um.” One occasional filler is normal.

Train the moments where filler words consistently

• interrupt your answer
• make you sound uncertain
• replace a useful pause
• make a long answer even longer

That's where improvement matters. [Practice your spoken interview answers with Mockly] Related: How Fast Should You Speak → How to Stop Rambling → How to Pause → How to Sound Confident